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 for a worldwide gross of $586.8 million, against a budget of $80 million. In its opening weekend, it earned $177.8 million, which was the highest-grossing worldwide opening for a comedy film, taking the record from "The Simpsons Movie" ($170.9 million). On the weekend of June 17–19, 2011, it out-grossed its predecessor in worldwide earnings to become the highest-grossing R-rated comedy of all time. The film was released on Thursday, May 26, 2011, in North America, coinciding with the U.S. Memorial Day weekend. During launch midnight showings in 2,600 theaters, the film earned $10.4 million, breaking the record for the biggest