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
Nudity in film female film director Anocha Suwichakornpong (also 2009). Three movies, made from 2009 to 2013, feature the full-frontal nudity of Asian American actor Ken Jeong, whose genitals appear in the US films "The Hangover" (2009), "The Hangover Part II" (2011) and "The Hangover Part III" (2013). One Asian-Australian movie in 2013 features full-frontal nudity, with Asian Australian Actor Matthew Victor Pastor showing his genitals for the Made In Australia (film) opening title sequence. The genitals of lead Hong Kong Chinese actors Byron Pang and Hong Kong half-Chinese/half-British actor Thomas Price are shown several times in the Hong Kong film "Amphetamine" (2010),