I'm glad that I didn't see this in the theatre, because when I watched it the first time on video, I needed to pause the movie several times just to catch my breath from laughing so hard! Wait a minute...was that the first time, or the tenth time? Playing Navin R. Johnson, the white son of a black family, Steve Martin leaves home to find "his special purpose." By the end of the movie, we all know what that was...to entertain his fans the way he has! As for Navin's special purpose, if you haven't already seen the movie, you aren't going to get any more information than what's here. It takes intelligence to play a complete idiot, and Steve Martin does the job extremely well. Also take note of Martin's costar Bernadette Peters, and the cameo appearances by Jackie Mason and Carl Reiner. Whoever wrote that people who watch "The Jerk" will be quoting its jokes for years after was absolutely right. This was the funniest of Steve Martin's movies!
