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 Inbetweeners Movie then went on to set a new record for the most successful opening weekend ever achieved by a comedy film in the UK, overtaking "" and "The Hangover Part II" after earning £13.22 million, compared to second-place "Rise of the Planet of the Apes" which took £2.4 million. "The Inbetweeners Movie" was confirmed as having the biggest opening weekend for an independent British film. It retained its number 1 position in the UK film charts for four weeks before being overtaken by "Tinker Tailor Soldier Spy" on 20 September 2011, by which time "The Inbetweeners Movie" had grossed £41.8 million