There are plenty of people that search for the best movie ever made, but few dare to plummet headfirst into the dizzying world of the worst films ever made. Here are some contenders! (Note: I don't even consider Sharknado bad enough to be on this list.)
Also check out the worst rated films on letterboxd!
Notable Zero Auteurs (Alan Smithees):
Edward D. Wood Jr.
Adam Sandler (& Dennis Dugan)
Jason Friedberg & Aaron Seltzer
PS: I currently believe Gayniggers from Outer Space is the worst movie I've ever seen, with After Last Season being the worst feature-length movie.