If you have a so-so screenplay, it doesn’t hurt to have talented people around to make the most of it.

Take, for instance, “The Instigators,” a buddy crime comedy that, after a limited theatrical rollout last week, lands this week on Apple TV+.

The movie is better than it has any right to be thanks largely to the chemistry of stars — and ol’ Boston pals — Matt Damon and Casey Affleck.

It’s better for the supporting work of talented Hong Chau and, to a lesser degree, by big-name bit players including Michael Stuhlbarg, Ving Rhames, Alfred Molina and Paul Walter Hauser.

Last but not least, “The Instigators” benefits — greatly — from having a well-above-average director in Doug Liman, who long ago directed Damon in “The Bourne Identity” and keeps this romp engaging and moving along to, well, let’s say an acceptable ending.

Set in Beantown, “The Instigators” first introduces us to Damon’s Rory, a former Marine who hasn’t seen much go right in his life, in a session with psychiatrist Dr. Donna Rivera (Chau). He won’t reveal much to his caring doctor but does mention that he’d had the thought of ending his life in a year if things didn’t turn around for him.

“And when did you come up with this plan?” she asks.

“It was about a year ago.”

Desperate to generate a little more than $32,000 to address a situation with his son, Rory meets with gangster Mr. Besegai (Stuhlbarg), who wants to rip off Boston Mayor Miccelli (Rob Perlman) on what surely will prove to be his re-election night. Long on the take, Miccelli is expected to be greeted with bags of cash at his waterfront victory party.

For the job, Rory has been recruited by unspectacular Besegai lieutenant Scalvo (rapper and singer Jack Harlow), as has Cobby (Affleck), an ex-con we meet using a neighborhood kid to pass the breathalyzer on his motorcycle so he can start it.

Rory’s quiet, primarily talking only when asking one of his many logistical questions, while Cobby is a chatterbox, commenting, sarcastically, on this, that and the other. Both men frustrate Besegai and Scalvo, the latter also being a constant irritation to the former.

What could go wrong with this operation?

Matt Damon, left, Alfred Molina, top center, Jack Harlow and Michael Stuhlbarg share a scene in “The Instigators.” (Claire Folger/Apple TV+/TNS)

Well, it should come as no surprise, plenty, and soon enough Rory and Cobby are on the run, both from criminals — such as Booch (Hauser), who works for Besegai associate Richie DeChico (Molina) — and the cops — namely Frank Toomey (Rhames), who has an off-the-books relationship with Miccelli and is turned loose by him after the lads swipe something they’ll come to learn is of great value.

Before long, Dr. Rivera is roped into the affair, more or less agreeing to be taken hostage by Rory to provide some medical care to Cobby. She then proceeds to try to re-engage with Rory as a counselor, which is witnessed with bewilderment — and genuine curiosity — by Cobby, who takes an interest in this highly intelligent woman.

Damon scores some laughs as the criminal newbie, but “Manchester by the Sea” star Affleck is more consistently funny cracking-wise, even as he does it at a relaxed pace that befits the actor’s talents.

While Damon is more connected to Affleck’s brother, Ben Affleck — and “The Instigators” is the second movie to be produced by Damon and Ben Affleck’s company, Artists Equity, following last year’s “Air,” which featured both actors — Damon and Casey Affleck have an obvious comfort with each other even if their characters don’t. (The latter appeared in 1997’s “Good Will Hunting,” which, of course, helped to establish Damon and Ben Affleck as stars.)

Rory and Cobby constantly annoy each other, a dynamic with the possibility of becoming annoying but doesn’t.

When you stir Dr. Rivera into the mix, Chau more or less serves the same purpose as Selena Gomez in the hit Hulu series “Only Murders in the Building,” where she shakes up the dynamic of longtime partners-in-comedy Steve Martin and Martin Short. Chau doesn’t fit neatly with Damon and Affleck, which is fun.

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It’s too bad Chau — an Academy Award nominee for her work in 2022’s “The Whale” whose credits also include “Downsizing” (2017) and “The Menu” (2022) — isn’t in more scenes. She adds something to each she gets.

And she gets many more than Stuhlbarg (“A Serious Man”), Molina (“Chocolat”) and Hauser (“Richard Jewell”), each of whom lends his gifts to only a few minutes of “The Instigators.” We are especially left wanting more of the impactful Stuhlbarg, intimidatingly bearded, as a career criminal at his wits’ end.

Rhames (“Pulp Fiction”) has a bit more to do, but he, too, is underutilized.

The aforementioned screenplay is the work of Chuck MacLean (“City on a Hill”) and Casey Affleck, who’ve known each other for years. MacLean is said to have written an early draft years ago, the script changing significantly when Affleck joined him to work on it.

It sounds as if the story told in “The Instigators” continued to evolve through shooting, Liman encouraging the cast to offer ideas and improvisation during the filming. It certainly has that feel.

Liman, whose credits also include 2005’s “Mr. and Mrs. Smith” and 2014’s excellent “Edge of Tomorrow,” also was at the helm for this year’s guilty-pleasure, straight-to-Prime Video remake of “Road House.” If something has a chance to work, he’ll make it work.

As fun as it is, “The Instigators” certainly isn’t all it could have been. But while it may be rough around the edges, without the people involved, it could have been downright rough.

‘The Instigators’

Where: Apple TV+.

When: Aug. 9.

Rated: R for pervasive language and some violence.

Runtime: 1 hour, 41 minutes.

Stars (of four): 2.5.

By TODD RICHMOND

MILWAUKEE (AP) — Prosecutors charged four Milwaukee hotel employees Tuesday with being a party to felony murder in connection with D’Vontaye Mitchell’s death.

According to a criminal complaint, the four employees dragged Mitchell out of the Hyatt Hotel on June 30 after Mitchell entered a woman’s bathroom and held him on his stomach for eight or nine minutes.

One of the employees told investigators that Mitchell was having trouble breathing and repeatedly pleaded for help, according to the complaint.

An autopsy showed that Mitchell suffered from morbid obesity and had ingested cocaine and methamphetamine, the complaint said.

Relatives of Mitchell and their lawyers had previously reviewed hotel surveillance video provided by the district attorney’s office. They described seeing Mitchell being chased inside the hotel by security guards and then dragged outside where he was beaten.

Civil rights attorney Ben Crump, who is part of a team of lawyers representing Mitchell’s family, has said video recorded by a bystander and circulating on social media shows security guards with their knees on Mitchell’s back and neck. Crump has also questioned why Milwaukee authorities had not filed any charges related to Mitchell’s death.

Aimbridge Hospitality, the company that manages the hotel, said previously that several employees involved in Mitchell’s death have been fired.

By TARA COPP and AARON KESSLER

WASHINGTON (AP) — A gear crack that led to a fatal crash of a V-22 Osprey last year may have been started by weak spots in a metal used to manufacture that part, according to documents obtained by The Associated Press.

The November crash killed eight Air Force Special Operations Command service members. It was the second time in less than two years that a catastrophic failure of a part of the Osprey’s proprotor gearbox, which serves as its transmission, caused a fatal accident. In June of 2022, five Marines were killed when a different part of the proprotor gearbox system failed.

The crashes have led to an aggressive effort by the V-22 program office and manufacturer Bell Flight to find fixes for the critical system, which has had some components wear down earlier than the military expected. This latest finding might hold some clues.

There’s no other aircraft like the Osprey in the fleet. It can speed to a target like an airplane then rotate its engines to land like a helicopter. Program leaders have pointed out that the Osprey has been vital in special operations and combat missions and has flown hundreds of thousands of hours successfully.

But the aircraft also has a troubled crash history, and the proprotor gearbox has been a persistent problem.

Data gathered by The Associated Press through the Freedom of Information Act shows 609 proprotor gearboxes have been removed for repair in the past 10 years. Over the last five years, the Marine Corps, Navy and Air Force have reported 60 incidents involving the proprotor gearbox.

Last week the Air Force identified cracking in a pinion gear, a part that’s about the size of a large jar lid, as one of two factors that caused the crash off Japan. The Air Force also faulted the pilot and crew, because the Osprey sent six warnings during their flight that the proprotor gearbox was in trouble.

But additional crash report documents obtained by the AP show this is not the first time this metal has failed in Osprey proprotor gearbox components, although it was the first time it failed in this specific gear. There have been seven previous cracking incidents in related gears that were likely caused by the same metal weakness, investigators reported.

It’s not clear if that information had previously been shared with the services, which could have led them to take a much more restrictive approach to how pilots were instructed to respond to any proprotor gearbox warnings.

In a rare move, as part of the accident report released publicly last week, the Air Force faulted the V-22’s program office for not sharing data that could have better informed crews of the severity of the risk.

The pinion gears are located inside the proprotor gearboxes on each wingtip. The gearboxes take in power from the Osprey’s engines and process it to turn the Osprey’s masts and rotor blades.

To do that, the gears spin rapidly under extreme pressure. They can overheat and break off metal flakes, called chips, which can move through the transmission and destroy it. Loss of a proprotor gearbox is dangerous and can lead to loss of an aircraft and crew.

In the November crash, investigators believe the first of the six chip warnings was an indication that a crack in the pinion gear had already taken hold and it was fracturing off small metal flakes as it continued to spin. The warnings progressed as the gearing shed more debris and ultimately broke apart, leading to rapidly cascading failures throughout the Osprey’s entire drive system and the fatal crash.

In the supplemental crash documents, investigators said analysis of the recovered pinion gear pieces revealed multiple inclusions. An inclusion is a microscopic weak spot in metal caused by foreign substances getting mixed in during the manufacturing process. Those weak spots can lead to fatigue cracking.

The specific alloy used to manufacture the Osprey’s pinion gears is called X-53 VIMVAR. Crash investigators found multiple inclusions in the failed pinion gear and similar inclusions in a second pinion gear on the aircraft, the report said. While the inclusions were found to be within the microscopic size limits allowed, investigators noted that “initiation of a fatigue crack is dependent on the size of the inclusion and its location within the gear material.”

Investigators concluded they could not determine whether the inclusions led to the cracking. But they left open the question of whether there may have been larger inclusions that could have caused the cracking and were lost as the pinion gear broke apart. “If the pinion did crack due to an inclusion, the evidence was obscured by the secondary damage,” the report found.

Of the 60 incidents reported over the past five years, at least 41 included chipping indications, according to the data obtained by the AP.

The gearbox is a sealed system, meaning ground crews on base can’t open it to inspect the gears for inclusions, and even if they could, they don’t have the machining needed to detect the microscopic defects, Air Force Special Operations Command head Lt. Gen. Michael Conley told the AP in an interview.

“So in the field, there’s nothing we could have done to detect this,” Conley said.

And Bell Flight can’t test the whole gear for inclusions either without multiple cuts into it, which would destroy the part. The primary safeguard is process control during manufacturing, the report said.

It’s not clear whether other Osprey parts, including the input quill assembly that was the cause of the Marine Corps 2022 crash, are also made from the X-53 alloy.

Bell referred all questions on the proprotor gearbox to Naval Air Systems Command, or NAVAIR, which has overall responsibility for the V-22 Osprey program.

In a statement to the AP, Col. Brian Taylor, head of the Pentagon’s V-22 program office, said it could not comment on specific proprotor gearbox changes underway, but said “as improved materials become available, they are evaluated for use in all our systems.”

Conley said, for now, the Air Force has made flying the Osprey more restrictive while doing longer-term engineering analysis. “Figuring out if there’s a better way with the gearboxes, better production methods, better material. That’s with NAVAIR and Bell right now,” he said.

Until at least mid-2025, the Osprey is expected to remain under flight restrictions that require it to stay within 30 minutes of a spot to land, among other safety checks.

Air Force Special Operations Command only has 51 Ospreys, but it’s had to remove 132 proprotor gearboxes for repair in the past 10 years, according to data obtained by the AP. The Marine Corps purchased 360 Ospreys and currently operates about 270. Over the past 10 years it’s removed 464 proprotor gearboxes. The Navy, which has 27 in the fleet, has removed proprotor gearboxes 13 times.

While the Osprey has been in design since the 1980s, the Marine Corps’ MV-22 version has only been deployed since 2007, the Air Force CV-22 since 2009 and the Navy’s CMV-22 version since 2021.