Mel Gibson was supposed to start shooting his part next week, but he was axed from the movie.
"I thought Mel would have been great in the movie. But I realize filmmaking is a collaborative effort, and this decision ultimately did not have the full support of my entire cast and crew," director Todd Phillips said.
During an interview Galifianakis said that although he was excited about The Hangover sequel, he was not into a lot of the showbiz scene.
When it comes to "a movie you're acting in, you don't have a lot of control – you just show up and vomit your lines out. I mean, I'm not the boss. I'm in a deep protest right now with a movie I'm working on, up in arms about something. But I can't get the guys to ... I'm not making any leeway."
We agree with Todd Phillips that Mel Gibson would actually be a great addition, but not everyone is so forgiving.