Doing press for "Much Ado About Nothing," filmmaker Joss Whedon says that despite the currently in production "Guardians of the Galaxy" being a part of Marvel's Phase Two plans, there will be no crossover between it and "The Avengers 2".
Filming on "The Avengers 2" kicks off at Shepperton Studios in the UK once 'Guardians' wraps its shoot there. Whedon says: "We're following Guardians at Shepperton, but we won't be swapping cast members. Every movie is its own thing, and has to be."
He then re-affirmed the characters are not part of the script "unless I take a lot of peyote and write a very different draft... and I'm not ruling that out!"
Source: Bleeding Cool