Mel Gibson Pissed About Hangover Role

Mel is NOT happy to lose his role in The Hangover 2, which could have been a comeback for the actor.
Here's what a source close to Mel had to say about it:

"He doesn't understand why Mike Tyson, a drug user who turned his life around, was given a chance while Mel was kicked to the curb. Everybody deserves a second chance."

Alan Nierob, who represents Gibson, made a statement that hinted at Mel's anger about being let go. Ironically, Nierob also represents Liam Neeson, who was hired to replace Mel.