The Hangover Part II takes no chances and opts for a safe, subdued pre-wedding brunch. Things do not go as planned, resulting in another bad hangover with no memories of the previous night. Development began in April 2009, two months before "The Hangover" was released. The principal actors were cast in March 2010 to reprise their roles from the first film. Production began in October 2010, in Ontario, California, before moving on location in Thailand. The film was released on May 26, 2011 and became the highest-grossing R-rated comedy during its theatrical run. A third and final installment, "The Hangover Part III", was released
The Hangover Part II Teddy lost his finger playing the knife game) before erasing the evidence of their exploits once again. Cooper, Helms, Galifianakis, Bartha, Jeong, Barrese, Vigman, and Tambor reprise their roles from the first film. Mike Tyson also reprises his role as himself and sings a cover of the 1984 Murray Head song "One Night in Bangkok" for the movie. The film is the Hollywood debut of Mason Lee, son of director Ang Lee. Nick Cassavetes has a cameo appearance as a Bangkok tattoo artist. Liam Neeson was initially cast in that role, which was originally envisioned for Mel Gibson. In April