I was amused by this video clip of Sir Ian McKellen on acting from a program called Extras:
I think writers as well as actors will appreciate this piece in particular. How often have authors been asked, "How much of [this piece of fiction] actually happened to you?" Authors who write in the first person are particularly prone to this question. The narrator of The Tell-Tale Heart was a murdering madman. Edgar Allan Poe, the author, was not.