Being a professional actor is quite the hit or miss profession. Hollywood is a fickle place - sometimes you get the part, and sometimes you don't, and the very fabric of our own pop culture consciousness is shaped by the outcome. Han Solo could've been played by Kurt Russell. Marlon Brando could've been the star of "Rebel Without a Cause." And the rebooted Man of Steel could've come in the form of ... Nicolas Cage.
Here are some audition tapes and screen tests where the thespians in question didn't get the gig. Hey, it all works out in the end.
"I hate him, I hate his stupid face." 23-year-old Marlon Brando screen tests for "Rebel Without a Cause" in 1947. The world wasn't quite ready and instead held out for James Dean.