Matt Damon's Oklahoma City Sandwich

Matt Damon gets sandwiched between wife Luciana and mom Nancy at the premiere of The Bourne Ultimatum at the Harkins Theater in Oklahoma City on Tuesday night.

On the red carpet, he talked about the need for environmentally-friendlyu movie sets: “You hear actors huff and puff about global warming, but you’ll go on a movie set and see like 8,000 Styrofoam cups laying around.”

Matt also recently chatted about how his daughter informs his movie career: “Those are the kinds of things where I say, ‘Well, do I want my daughter exposed, knowing that her dad makes movies like this or that?’ There are so many movies that drive my mom just totally crazy, because there are these thousands of acts of violence. The movies are rated PG-13, but the toys are marketed to ages 4 and up. So you get these kids who are just getting pounded by this imagery from a very young age. I don’t want to be a part of that.”

The Bourne Ultimatum opens in theaters this Friday, August 3rd!