Pitt, whose production company, Plan B, produced the film with A24 and Pastel Productions, looked to be in high spirits as he posed for a shot with Julia Roberts, Moonlight star Trevante Rhodes, and writer/director Barry Jenkins.
The World War Z star also took the podium with Roberts to speak about the highly-acclaimed film.
The event marks the first time Pitt has been photographed following the announcement of his split from Jolie. The actor cancelled his appearance at the Voyage of Time premiere in late September, announcing that he was "currently focused on my family situation."
Nearly two months later, ET has learned that that the former couple has spoken directly to reach a new custody agreement. Pitt filed his response to Jolie's divorce petition on Friday, and requested joint custody of their six children: 15-year-old Maddox, 12-year-old Pax, 11-year-old Zahara, 10-year-old Shiloh, and 8-year-old twins Knox and Vivienne.
"In accordance with this agreement, the six children will stay in their mother's custody, and the children will continue therapeutic visits with their father," read a statement to ET by Jolie's rep. "This has been determined by childcare professionals to be in the children’s best interest."