Warner Bros. has released a new trailer for The Hangover Part III.  The first trailer almost made the movie look like an action flick, but now we're getting a look at the comedy and the plot.  In the series' final installment, Stu (Ed Helms), Phil (Bradley Cooper), and Doug (Justin Bartha) are taking Alan (Zach Galifianakis) to a psychiatric hospital, but the gang is side-trekked when a mysterious man (John Goodman) kidnaps Doug and forces the wolf pack to track down Mr. Chow (Ken Jeong), who stole $21 million from Goodman's character.  There are some good laughs in here, so hopefully the trilogy will go out on a high note.

Hit the jump to watch the new trailer and to check out a few new posters.  The film stars Bradley Cooper, Ed Helms, Zach Galifianakis, Justin Bartha, Ken Jeong, Heather Graham, John Goodman, Mike Epps, Mike Tyson, and Jeffrey Tambor.  The Hangover Part III opens on May 24th.

Here’s the official synopsis for The Hangover Part III: 

“The Hangover Part III” is the third and final film in director Todd Phillips’ record-shattering comedy franchise. This time, there’s no wedding. No bachelor party. What could go wrong, right? But when the Wolfpack hits the road, all bets are off.