After a year of watching terrible movies, documented in his book Showgirls, Teen Wolves, and Astro Zombies: A Film Critic's Year-Long Quest to Find the Worst Movie Ever Made, Michael Adams chose these as the bottom 20. He asks, if you've ever seen anything worse, to contact him. (I have: Alice in Acidland, 1969. Unfortunately, it's porn, so it doesn't qualify.) He can be reached at michaeladamswrites@gmail.com.
Spammers: if you check off every movie on a list of terrible movies, it just makes you look like you have really bad taste.