'Scary Movie 5' and more unnecessary sequels
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The 'Star Wars' franchise( Lucasfilm / February 14, 2013 )
The Good: The original trilogy from the '70s and '80s is one of the preeminent sci-fi series out there. Though don't even get us started on ewoks.
The Bad: The subsequent three films were a mixed bag, with "Phantom Menace" definitely the weakest of the bunch.
The Ugly: There really isn't any ugly here. The series is going to see its final three movies made, the seventh of which is being directed by J.J. Abrams and has many original cast members rumored to be returning. There are also going to be character-based spinoffs.