Synopsis: From comedians Paul Provenza (who directed) and Penn Jillette (half of the notorious Penn & Teller duo) comes a fascinating documentary that opens a window on the world of the working comic, offering unprecedented backstage access. The premise is simple enough: More than 100 comedians (including big-name stars and lesser-known talents) tell the same raunchy vaudeville joke more than 100 times -- with about 100 different results.