This stuff always facinates me.  I always have liked to know what actors were up for parts and not got them.  Thinking about how that actor would be in the role instead of the guy that got cast is interesting to me.  This is a cool video that I came across of actors auditioning for roles before they were famous.  Most of them got the roles, but some did not, like Brad Pitt auditioning for Backdraft???!!!  Crazy!