You know Summer is here when a lot of movies open and many of them are sequels. The Hangover 2 is a sequel to the first smash comedy set in Las Vegas. In this one, its the same set of characters, (actually with the addition of a funny monkey), taking it to Thailand for another pre-wedding party that is obviously one to forget. Phil (Bradley Cooper), Stu (Ed Helms), Alan (Zach Galifianakis) and Doug (Justin Bartha) are back and they are joined by Ken Jeong. The Hangaover Part II is directed by Todd Phillips, is brought to you by Warner Bros, and opens in movie theaters on May 26th.