One of the greatest and most believed angles ever worked. Andy Kaufman - I'm from Hollywood.

If you don't feel like watching all 7 parts, whet your palette and get a taste of it from this little clip.

Links to the "I'm from Hollywood" film:

Part 1

Part 2

Part 3

Part 4

... Not part of the film, but here's the relevant Letterman appearance

Part 5

Part 6

Part 7

Here's a good historical write-up which is a great read:

http://www.wrestlingmuseum.com/pages/wrestlers/andykaufman2.html