Bradley Cooper in Talks to Voice 'Rocket Raccoon' in GUARDIANS OF THE GALAXY

Marvel may have landed its voice for Rocket Raccoon.

As first reported by the usual spot-on Latino Review, Deadline has confirmed that Bradley Cooper is in "deep negotiations" to board the interstellar superhero flick. Vin Diesel is also all-but signed to play the tree-like 'Groot.'

For the original report, click here.

Should Cooper sign on, it would be the first time he's lent his voice to a film. He would join previously announced Chris Pratt, as Peter Quill aka Star-Lord, Zoe Saldana, as Gamora, Dave Bautista as Drax the Destroyer, Lee Pace as Ronan the Accuser, Michael Rooker as Yondu, Karen Gillan as Nebula, two-time Academy Award nominee Djimon Hounsou as Korath, with Academy Award winner Benicio Del Toro as The Collector, Academy Award nominee John C. Reilly as Rhomann Dey, and six-time Academy Award nominee Glenn Close as Nova Prime.

Directed by James Gunn ("Slither,""Super") from his screenplay, with a story by Nicole Perlman and Gunn, the film will introduce audiences to a whole new side of the Marvel Cinematic Universe.

Marvel Studios' President Kevin Feige is producing the film. The executive producers are Louis D'Esposito, Victoria Alonso, Jeremy Latcham, Alan Fine and Stan Lee; the co-producer is Nik Korda.

The creative team includes director of photography Ben Davis, BSC ("Wrath of the Titans", "Kick-Ass"), production designer Charles Wood ("Thor: The Dark World"), BAFTA-nominated Editor Fred Raskin ("Django Unchained," "Fast Five") and Academy Award-winning editor Hughes Winborne, A.C.E. ("The Help," "Crash"), and Academy Award winning costume designer Alexandra Byrne ("Marvel's The Avengers," "Elizabeth The Golden Age"). The film will also shoot at Longcross Studios, and locations in and around London.

Marvel's "Guardians of the Galaxy" is slated for an August 1, 2014 release in the U.S.

Photo by Stewart Cook / Rex USA, Jim Smeal / BEImages