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
Crystal the Monkey in July 2011. She portrayed a drug dealing monkey in the 2011 film "The Hangover Part II". Director Todd Phillips raised concerns after he joked that Crystal had become addicted to cigarettes after learning to smoke them for the film. Philips later explained that Crystal never actually held a lit cigarette on the film's set, the smoke was added digitally in post-production, and the cigarette was ceramic. Still PETA protested Crystal's appearance in the film because the studio used exotic animals for entertainment purposes and because the film does not carry the American Humane Association's disclaimer that "no animals were