Dennis Hopper's career went through many ups and downs, but there was one film he made in the '80s was just about unbearable.

The Monkees starred in 'Head', one of the most bizarre movies ever made by famous musicians. One Monkee isn't sure what 'Head' is about, but he has a theory.

The Monkees' show was almost nixed before it got off the ground. That would have changed the entire history of movies!