The Hangover Part II and earlier comments made by Phillips denying such reports were a deliberate case of misdirection. The following month, Bradley Cooper stated he believed the rumors to be true and was looking forward to filming "The Hangover 2" in Thailand. In October 2010, Phillips confirmed that the film would take place in Bangkok and Los Angeles and that Galifianakis, Cooper, Helms and Ken Jeong would be returning. On a budget of $80 million, principal photography began on October 8, 2010, in Ontario, California with the first images of production being released a few days later. It was also reported in October
The Hangover Part II Mr. Chow as an offensive caricature and stated doing the character was "very cathartic" for him and said the character "has the inflections of Vietnamese, with kind of the anger of my own Korean nature" although "it's definitely not about an accent, or a stereotype." As the film comes to a close, many photos are revealed depicting the events of the previous night. Among them is a photo which loosely depicts a famous war photo by photographer Eddie Adams of a public execution during the Vietnam War. Film critic Roger Ebert was amongst those who criticized use of the photo,