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 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",