And Alan seems to be unaware of what are considered the social graces of the western world. The morning after their arrival in Las Vegas, they awaken in their hotel suite each with the worst hangover.

The Hangover starring Bradley Cooper, Ed Helms, Zach Galifianakis, Justin Bartha has a R rating, a runtime of about 1 hr 40 min, and a scheduled release date of June 5th, 2009.

The Hangover Part II is structurally similar to the first movie — Bradley Cooper, Ed Helms, and Zach Galifianakis gather for a wedding, then have to piece together a blackout night — but Todd ...

Meet the talented cast and crew behind 'The Hangover (2009)' on Moviefone. Explore detailed bios, filmographies, and the creative team's insights. Dive into the heart of this movie through its ...

At times, Helms would finish The Hangover at 4:30 a.m. and immediately fly back to Los Angeles to make his 6:30 a.m. call time for the sitcom. "It was completely and totally insane," he said.

“So my parents - at that point they'd seen me do crazy stuff on The Daily Show and The Office - and so there was some sort of acceptance already, but, still, I was nervous for my parents to see ...