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 screens. In total, the film accrued $60.3 million from its Friday-through-Monday opening weekend, more than tripling the international gross of "The Hangover"s debut in the same territories. The highest weekend gross came from the United Kingdom where the film earned £10,409,017 from 469 screens, breaking the record for the highest-grossing opening for a US comedy, but this record was overtaken by "The Inbetweeners Movie" (£13,216,736). Australia accrued a gross of $12.1 million to replace "Sex and the City" in the country as the highest-grossing opening for an MA-rated film—no-one under the age of 15 permitted. The film took $8.7 million