We're constantly hearing about how so-and-so auditioned for a role and got it, or how whats-their-name turned down a chance to play a character who became a pop culture institution, but it's rare to hear about failed auditions.
Which is why this somewhat erroneously titled video by Looper is pretty cool- it includes footage from failed auditions including Seth Rogen's audition to play Dwight on The Office and young Scarlett Johansson's audition to play Judy Shepherd in Jumanji.
It also has a few auditions that would be considered oddities more than failures, like the time Tom Selleck tried out for the role of Indiana Jones, a role he would have gotten had he not been stuck in paradise filming Magnum, p.i.