The Hangover (film series) after hearing how a friend of executive producer Chris Bender went missing following his bachelor party in Las Vegas. After Lucas and Moore sold it to Warner Bros. for $2 million, director Todd Phillips and Jeremy Garelick rewrote the script to include a tiger as well as a subplot involving a baby and a police cruiser, and also including boxer Mike Tyson. Filming took place in Nevada for 15 days. In "The Hangover Part II", Phil, Stu, Alan, and Doug travel to Thailand for Stu's wedding. After the previous film's bachelor party in Las Vegas, Stu takes no chances and
The Hangover (film series) opts for a safe, subdued pre-wedding brunch. However, things do not go as planned, resulting in another bad hangover with no memories of the previous night. Once again someone is lost, this time Stu's future brother-in-law, and Phil, Stu, and Alan search for him in Bangkok. Warner Bros. hired Todd Phillips and Scot Armstrong to write a sequel to "The Hangover" after a trailer brought down the house at ShoWest in April 2009, two months before the film was released. The principal actors were cast in March 2010 to reprise their roles from the first film. Production began in October