A musical, using the the loosest possible sense of the word, that has to be seen to be believed.

Burt Reynolds dance moves look like a drunk killing cockroaches, and the movie just gets better from there. 

Peter Bogdanovich paired up his girl-fried at the time, Cybil Shepherd, with Burt Reynolds (!) to make a 1930's musical and song and dance number. Well, ladies and gentlemen of the RIA, Fred and Ginger they ain't. The sets were gorgeous and the Cole Porter numbers were great, but the stars flopped. I think this sent Cybil's career into eclipse for years until she made her television series comeback.

Oh well, I was going to comment on this list, but I have such a low tolerance of bad movies, I actually haven't seen any of these! If I hear a movie is awful, I will not pay money to see it.