Between The Hangover and The Hangover Part II, "The Wolf Pack" has brought in over $1 billion worldwide, and it seems Warner Bros. will have to dig deeper into those profits to ensure The Hangover Part III happens. A new report reveals stars Bradley Cooper, Zach Galifianakis, and Ed Helms are asking for $15 million apiece to reprise their roles in The Hangover Part III.

It is believed that the deals are being finalized, which includes a back end percentage on top of the $15 million, and the actors will likely get what they requested. Bradley Cooper, Zach Galifianakis, and Ed Helms each made a little under $1 million for The Hangover, and $5 million for The Hangover Part II, but with back end compensation, each of the actors have made more than $10 million from The Hangover Part II.

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Back in December, Bradley Cooper revealed that The Hangover Part III will start shooting in September, although it seems the studio wants to get started earlier then that. Insiders claim Warner Bros. wants to go into production this summer, so the comedy sequel can hit a Memorial Day 2013 release. Little is known about the story, but it is said to be centered around The Wolf Pack's home city of Los Angeles.