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The Wolfpack is back.

Warner Brothers Pictures announced the production start date in September 2012 for the last sequel of the series “The Hangover Part III.”

The stars Bradley Cooper, Ed Helms, Zach Galifianakis will also reprise their roles as Phil, Stu and Alan respectively.

In the previous two films, the trio tries to help their missing friend out after a disastrous night of celebration.

Director Todd Phillips will return at the helm for the third film.

“I’m so excited to embark on another ‘Hangover’ film with Bradley, Ed and Zach,” he said. “We’re going to surprise a lot of people with the final chapter we have planned. It will be a fitting conclusion to our three-part opera of mayhem, despair and bad decisions.”

Phillips will be writing the screenplay with Craig Mazin. Mazin also collaborated with the screenplay for “The Hangover Part II.”

The two previous films grossed over $531 million domestically at the box office.

“The Hangover Part III” is scheduled for release on May 24th in 2013.