The Hangover Part II did not have the full support of my entire cast and crew." Liam Neeson replaced Gibson after being invited by Cooper, who worked with Neeson on "The A-Team", to take the part. Neeson, a fan of the first film stated, "I just got a call to do a one-day shoot on 'Hangover 2' as a tattooist in Thailand, and that's all I know about it". Gibson was reportedly furious over the decision. A source close to Gibson stated, "He doesn't understand why Mike Tyson, a drug user who turned his life around, was given a chance while Mel was kicked
The Hangover Part II but with Neeson in London filming "Wrath of the Titans", the actor was no longer available. Phillips explained, "We were in a complete time crunch so I called up Nick and asked if he would do the part. He came in and crushed it and that is the scene that you will ultimately see in the film. [I'm excited for everyone] to see the film. It turned out great". The soundtrack was released on May 24, 2011, by WaterTower Music. The soundtrack contains 12 songs from the film, along with eight dialogue clips from the film. Though the song "Monster",