Avengers: Age Of Ultron - 11 Ways It Was Almost Completely Different
7. Aaron Taylor- Johnson Almost Turned It Down
Despite some cynics complaining that Aaron Taylor-Johnson's version of Quicksilver was a low-point for the cast, he was always Joss Whedon's first choice for the role.
It actually took the director a year to convince the Kick-Ass star to accept the role, because he was concerned about being locked into a contract that would limit his ability to work elsewhere. He also apparently wasn't keen on sharing the screen with such a big cast, and was only comforted by Whedon promising him he didn't have to make any follow-up films, and that he'd be working closely with Godzilla co-star Elizabeth Olsen.