The funniest film threesome of 2009 has finally agreed to reunite. Though it sounds like a complete no-brainer that The Hangover will have a sequel, the follow-up to the biggest grossing R-rated comedy of all time almost didn’t happen.

Rumours had been floating for months that stars Bradley Cooper, Zach Galifianakis and Ed Helms were less than inclined to return for a second round, but Deadline.com is now confirming that the sequel is a go.

Turns out it was protracted negotiations over the stars’ salaries that was holding up development. Though The Hangover raked in over $467 million at the worldwide box office, the three actors had been paid about $300,000 a piece for their work. Before negotiations began, Warner Bros. reportedly slipped each star a million dollar bonus, but their agents and lawyers were still adamant that this time their clients should receive a bigger piece of the pie.

So, for the second film, each actor will receive about $5 million and a percentage of the gate. Director Todd Phillips, who is also back on board, will clear $10 million. The original film — a surprise hit when it was released last year — cost only $34 million to make (which is not a lot in Movieland).

No word yet on the story of the sequel, despite rumours that it follows the boys on a trip to Asia. “There’s a lot of rumours,” Phillips has said. “There was a rumour also that it was going to Mexico or something and neither are true.”

Warner Bros is hoping to release The Hangover 2 in the summer of 2011.

(Photo by PR Photos)

Story provided by the Dish Information Corporation