"Hangover 2" was created by the original crew and continues the funny style of the previous episode. Stu (Ed Helms), who has experienced emotional entanglements in the previous episode, is newly married in this episode. Friends Phil (Bradley Cooper), Alan (Zach Galifianakis) and Doug (Justin Bartha) go to Thailand to attend his wedding. Unexpectedly, the hangover occurred again. A group of brothers woke up and found themselves in Bangkok. The bride's brother (Li Chun) had mysteriously disappeared. The Asian gangster "Mr. Chow"(Ken Jeong) suddenly appeared, so a crazy adventure came back in a foreign country! It is worth mentioning that Ang Lee's son Li Chun plays the role of the bride's brother in the film, a high-quality student with excellent grades.