Long before Guardians of the Galaxy became a massive hit at the box office last summer, many fans were wondering who would actually play these diverse characters. Bradley Cooper was the last actor announced, and many were surprised that director James Gunn chose him to voice the snarky raccoon, but he ended up becoming a fan favorite. Director James Gunn is currently in Atlanta, entering pre-production on the sequel, Guardians of the Galaxy Vol. 2, and during some downtime yesterday, the filmmaker held a live video Q&A session through his Facebook page. The director dropped a very interesting tidbit, revealing that comedy legend Danny DeVito actually tried out to voice Rocket in Guardians of the Galaxy.

"In all honesty, Danny DeVito is one of the voices we tried out. But Danny DeVito is an older man now, and Rocket is not an older man. He's a younger man. And Danny DeVito's voice just wouldn't work."

The director was responding to a fan who asked that he replace Bradley Cooper with Danny DeVito. It isn't known what other actors actually read for the Rocket Raccoon role before James Gunn decided on Bradley Cooper, but the casting choice was later praised by fans after they finally got to hear what Rocket would sound like. Rocket, along with the rest of the Guardians, Star-Lord (Chris Pratt), Gamora (Zoe Saldana), Drax (Dave Bautista) and Groot (Vin Diesel) will be back for Guardians of the Galaxy 2, which is currently in pre-production in Atlanta.

If someone would have walked in to Guardians of the Galaxy not knowing any of the cast members involved, that person most likely would not have guessed that Bradley Cooper was the voice of Rocket. The actor eliminated all traces of his Philadelphia accent to portray the snarky raccoon, and his gravelly voice is unlike anything we've ever heard from the actor, before or since then. The casting worked out for the best, as Guardians of the Galaxy went on to become the surprise box office hit of 2014, taking in $333.1 million domestic and $774.1 million worldwide.

James Gunn also revealed during the Q&A that the biggest Guardians of the Galaxy Easter Egg has still gone unnoticed, although he wouldn't divulge any clues. You can visit the director's Facebook page to watch the entire 48-minute Q&A session, and stay tuned for more updates on Guardians of the Galaxy Vol. 2, which starts filming early next year. Do you think Danny DeVito would have made a better Rocket Raccoon than Bradley Cooper?