A request for help and two reviews

Help! You guys have extensive collective knowledge on which I wish to draw. I am looking for an example of a novel (in a pinch, a movie) in which a character has the name of a famous person, but is not supposed to be that famous person. So, Gary Coleman in Avenue Q isn’t right—even though the role was inaugurated by a woman, the script uses elements of the real Gary Coleman’s story. It’s okay if people in the story are aware of the famous person and talk about him/her; I just need it to be clear that Marilyn Monroe isn’t that Marilyn Monroe. Minor character or major character, it makes no difference as long as they share a name with a famous person. I greatly appreciate any help you can offer.

( Pictorial law and the Tuskegee syphilis experiment )