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
Hangover research of alcohol hangover is growing rapidly. The Alcohol Hangover Research Group had its inaugural meeting in June 2010 as part of the Research Society on Alcoholism (RSA) 33rd Annual Scientific Meeting in San Antonio, Texas. In 2012, Éduc'alcool, a Quebec-based non-profit organization that aims to educate the public on the responsible use of alcohol, published a report noting hangovers have long-lasting effects that inhibit the drinker's capabilities a full 24 hours after heavy drinking. In 2012, Las Vegas based Hangover Heaven, a mobile hangover treatment clinic, opened along with its Hangover Research Institute, which studies the treatment of hangovers.