The last time Ben Affleck and Jennifer Lopez prepared for the release of a shared film, they were months into a breakup.

Now, 20 years later, history is repeating itself.

As J.Lo walked the red carpet Sept. 6 at the 2024 Toronto International Film Festival's premiere of Unstoppable, in which she plays the mother of wrestler Anthony Robles, her estranged husband—a producer on the biopic—was back in Los Angeles.

And Affleck, 52, appeared to be in great spirits. Wearing a blue suit and aviator sunglasses, the Oscar winner flashed a big smile as he was photographed walking with an unidentified man.

While Lopez and Affleck’s fellow co-producer Matt Damon were in Toronto to celebrate the film, the Air star remained in Los Angeles for work and to spend time with his and ex-wife Jennifer Garner’s kids Violet, 18, Seraphina, 15, and Samuel, 12, E! News has learned.

Lopez, 55, filed for divorce from Affleck in Los Angeles Aug. 20, more than two years after they married in Las Vegas after a whirlwind rekindled romance. In her filing, the Hustlers actress noted the pair had separated in April.

The former couple had originally begun a relationship after meeting on the set of the movie Gigli in 2001. The following year, they got engaged and also filmed Kevin Smith's Jersey Girl.

Lopez and Affleck walked the red carpet together for the premiere of the first film in 2003. But by the time came to promote the second in 2004, the couple had broken up and J.Lo was absent as Affleck walked the red carpet with his mom at the Jersey Girl premiere in New York City.

As for how their breakup has affected their new film, Unstoppable director William Goldenberg weighed in on the current dynamic between Lopez and Affleck, noting that there is "not really" any awkwardness.

"Everybody's a professional, and that's their own personal thing," he told Variety in an interview published Sept. 6. "I love them both. I mean, I know Ben better, but Jennifer was literally a dream to work with. She was incredible. And their personal life is their personal life."

Look back at Lopez and Affleck's relationship history...

The two prepare to film a scene for the movie in West Hollywood. The couple met on the set of the film.

The two are spotted in the city.

The two film the movie on Will Rogers State Beach in Los Angeles. That month, the actor proposes to the actress with a 6.1-carat pink diamond ring.

The two film the movie in New York City.

Is there anything more '00s than both Bennifer 1.0 and TRL?

The two make their red carpet debut as a couple at the premiere of her film Maid in Manhattan.

The two bundle up at the Sundance Film Festival in Utah.

The two appear at the premiere of Daredevil, starring Ben as the superhero.

The two appear at the premiere of Daredevil, starring Ben and future ex-wife Jennifer Garner.

The two attend the Academy Awards together.

The two sit courtside at a Los Angeles Lakers game.

The two film a Dateline interview for NBC in Vancouver.

The two appear at the premiere for their movie in Westwood, Calif.

...it flops at the box office.

The two postpone their wedding. No future date is given.

The two are seen at a Boston Red Sox game. The team is Ben's favorite.

The two end their engagement.

They're baaaack. On Sept. 10, the couple makes their first red carpet appearance in 18 years at the Venice Film Festival premiere of The Last Duel. 

There's no denying J.Lo makes for a stunning plus-one! 

Ben supports J.Lo at the 2021 Global Citizen Live event in New York City, where she performed onstage. It marked her first music gig since she performed at VAX LIVE in May, where the actor also appeared onstage separately, fueling rumors of a rekindled romance.

The two attend the Met Gala together for the first time.

Jen and Ben put on a sizzling display on the red carpet at the premiere of his film The Last Duel in New York City.

Jennifer confirmed her engagement to the Gone Girl actor with a video posted to her On The JLo site, revealing a glimpse of her beautiful engagement ring with a green stone.

On July 16, Jennifer and Ben tied the knot in a surprise ceremony at A Little White Wedding Chapel in Las Vegas.

The two vacation with her twins and two of his kids in the French capital soon after their wedding.

J.Lo steps out with Ben in support of his movie The Flash.

Jennifer release This Is Me... Now, an album about her relationship with Ben. The record is accompanied by a musical film titled This Is Me... Now: A Love Story and the documentary The Greatest Love Story Never Told.

The couple enjoys a day out in NYC on March 30, 2024.

J.Lo filed for divorce Aug. 20, listing the date of separation as Apil 26, according to the filing obtained by TMZ.

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