Breaking news: Jennifer Lopez and Matt Damon Have ‘Long, Deep Conversation’ at Unstoppable Afterparty amid Ben Affleck Divorce (Source)…See more

Jennifer Lopez and Matt Damon engaged in a “deep conversation” at an Unstoppable afterparty following the movie’s premiere at the Toronto International Film Festival (TIFF), a source tells PEOPLE.

After posing for group pictures together at the premiere on Friday, Sept. 6, the source says that Lopez, 55, and Damon, 53, hung out and talked for over 20 minutes at the afterparty, which was held at EPOCH Bar & Kitchen Terrace at The Ritz-Carlton.

The insider says Lopez — who stars in Unstoppable and is a co-producer alongside Damon — was sitting at a table outside with the actor’s wife Luciana Damon and costar Don Cheadle when Damon joined them.

“Jen and Matt began talking and had a long, deep conversation,” the source says, adding that the two friends laughed and spoke more seriously, and for several minutes, they clasped hands as they spoke.

Noticeably absent from the movie’s premiere and afterparty was co-producer Ben Affleck.

The biopic — which follows the real-life story of wrestler Anthony Robles, who was born with one leg and eventually won a NCAA national championship in 2011 — was produced under Affleck, 52, and Damon’s production company Artists Equity. Lopez portrays Robles’ mother Judy Robles in the film, which earned a standing ovation from the crowd as the credits rolled at TIFF.

On stage during the Q&A after the screening, Lopez underscored how important it was to do Judy’s story justice.

” I think it was my job really to help her feel safe,” she said, “Both of them, Anthony and Judy, to feel safe and kind of put this in our hands and trust us with all the information that they could give us and know that we wouldn’t misuse it in any way, but only use it to tell their story in the best and most beautiful way that it deserved. Because it is one of the most beautiful, most inspiring stories I think I’ve ever seen on screen.”

The premiere marked Lopez’s first major public appearance since she filed for divorce from Affleck on Aug. 20 after two years of marriage.

Last month, sources told PEOPLE that Lopez and Damon planned on attending the TIFF premiere, while Affleck would not be present.

On the same day as the event, Affleck was seen stepping out in Los Angeles wearing a navy suit and sunglasses.