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 be reteaming with director Todd Phillips to score the film. The project marks the fourth collaboration between Beck and Philips, who also worked together on "School for Scoundrels", "The Hangover" and "Due Date". In April 2011, "Variety" reported that Liam Neeson's cameo as a Bangkok tattoo artist had been cut and Nick Cassavetes had been re-cast in the role. While editing, Phillips cut the scene that immediately followed Neeson's cameo, meaning it no longer had the information necessary to logically get the main characters to the situation in the next scene. Three weeks later, Phillips decided to reshoot the scene,