Take a look at some actors who found themselves playing other Hollywood stars who came before them.
In the new biopic "Hitchcock," opening in limited release Nov. 23, Oscar-winner Anthony Hopkins plays the titular director Alfred Hitchcock, who was known for having cameos in his own movies.
The following five celebrity urban legends will likely live on long into the future, despite the fact that none of them is remotely true.
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Take a look back at some of the more memorable casting changes in the history of television.