Speed 2: Cruise Control
Switching the action from the highway to the high seas was not the best course of action for this Sandra Bullock movie.
Teen Wolf Too
It's crazy to think MTV managed to make a hit series after Teen Wolf Too put a dark mark on the franchise.
The Divergent Series: Allegiant
The first two movies were not great, but the third completely ruined the little momentum the movie series had going for it. It came as no shock that the plug was pulled on the final movie in the series.
Transformers: Revenge of the Fallen
There were reports that this movie was filmed without a script due to the writer's strike. That probably explains the lack of decent story.
Basic Instinct 2
Sharon Stone got audiences talking for all the wrong reasons with this sequel that was so bad it was good.
Grease was one of the most successful movies ever made, but the sequel went widely ignored by pretty much everyone.