Matt Damon stepped out with wife Luciana Barroso on his arm.
Asked about the biggest challenge he faced during filming, the actor was quick to reply. "Dieting," he said. "I'm not a big fan of that… Neill [Blomkamp, the director] literally showed me a picture of my head superimposed on the body of some 22-year-old MMA guy and I went, 'OK. I know what I have to do.' And then it's just about doing it."
Jodie Foster's on-screen wardrobe was designed by Armani, but the actress stepped out in a Roland Mouret design for the film's premiere.
"Usually I'm excited about the food I'm gonna eat at the end because Sony is a really good studio for that," she said of the event. "They always have really good food, and I believe that comes straight from Amy Pascal."
Sharlto Copley, who previously starred in Blomkamp's District 9, told THR that he reveled in taking a back seat as a supporting actor rather than the lead.
"I felt like there was an opportunity to do something very different for Neill and my relationship in me playing the villain," he said. "It was cool because it took some of the responsibility off carrying the film, so you can really just enjoy it. I had a good time"
Wearing Calvin Klein to the premiere, Elysium star Alice Braga told THR: "It's the perfect combination of an action, sci-fi, futuristic film with a message. With something that tells the world what's going on."
Director Neill Bomkamp poses for a photo with friend and Elysium actor Josh Blacker. "We both have a passion for playing squash," Blacker told THR.
"We have this ongoing trash talking contest," he added, noting that Blomkamp "[is] a writer and director, so he's got the upper edge."
William Fichtner was joined by wife Kimberly Kalil on the red carpet.
Wagner Moura stars as Spider, a crucial — if unlikely — ally for Damon's Max.
The Newsroom actress Constance Zimmer steps out at the premiere.
Diego Luna stars as Julio, the side-kick and best friend to Matt Damon's Max.
Graceland actress Serinda Swan flashes a little leg on the red carpet.
Castle and CBGB actress Stana Katic steps out.