When Guardians of the Galaxy hits theaters this weekend, fans will be introduced to a whole new group of unique characters from the Marvel comic book universe, the strangest of which are Rocket Raccoon and Groot. Marvel Studios has released a new featurette that sheds more light on this crass raccoon, voiced by Bradley Cooper and this massive, living tree, voiced by Vin Diesel. Although Groot only has one line of dialogue throughout the movie ("I am Groot"), director James Gunn explains that this phrase can mean several different things.

Take a look at the latest footage and prepare to enter a whole new world when Guardians of the Galaxy hits theaters on August 1.

Marvel's Guardians of the Galaxy expands the Marvel Cinematic Universe into the cosmos, where brash adventurer Peter Quill finds himself the object of an unrelenting bounty hunt after stealing a mysterious orb coveted by Ronan, a powerful villain with ambitions that threaten the entire universe. To evade the ever-persistent Ronan, Quill is forced into an uneasy truce with a quartet of disparate misfits-Rocket, a gun-toting raccoon, Groot, a tree-like humanoid, the deadly and enigmatic Gamora and the revenge-driven Drax the Destroyer. But when Peter discovers the true power of the orb and the menace it poses to the cosmos, he must do his best to rally his ragtag rivals for a last, desperate stand - with the galaxy's fate in the balance.

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