After being attached to the forthcoming "Ant-Man" Marvel super hero flick for a staggering eight years, director/co-writer Edgar Wright left the project he has been nurturing on the basis that the studio made changes to his script without his permission. Variety presents nine other examples of high profile film productions dating back to "The Wizard of Oz: and "Gone With the Wind" that saw directors replaced, mostly due to "creative differences". Click here to read.