Last night's premiere for The Hangover Part III was both a celebration and a send-off for the hit movie franchise.
"It's a little sad," Bradley Cooper told reporters on the red carpet. "It's bittersweet."
Justin Bartha echoed Cooper when asked about the mood of the night. "It's a little bittersweet," he told us exclusively. "It's sweet. It's all gravy after the first one. No one expected the first one to do what it did, and now we got to make a couple more movies with great people. So it is the end and we're all aware it's the end. It's like seeing people you love go."
"Of course, it's very, very sad," Ed Helms dished to us, adding, "But also very fun. It's a celebration."
Costar Zach Galifianakis said he didn't feel emotional to be at their last premiere together. "Not yet," he told us. "I don't know why."
Meanwhile, Heather Graham was all smiles and just happy to be back for the final Hangover flick after starring in the first. "I don't feel sad," she dished to us. "I'm happy. It's a celebration."
Bartha, who reportedly got engaged recently, told us he hasn't sworn off Las Vegas after making the Hangover flicks. "The movie hasn't ruined Vegas," he smiled. "The movies kind of breathed new life into Vegas in a weird way. I'll always have a special part in my heart for Vegas."
Sounds like he's open to a possible future bachelor party there à la Hangover part one!
As for what he's going to miss, Galifianakis told reporters, "There's a lot of laughing going on on set. There's camaraderie, there's a lot of making fun of each other. I will miss that. But I won't miss getting made fun of."