4. Indiana Jones And The Kingdom Of The Crystal Skull

When a fourth Indiana Jones was announced, action fans everywhere were salivating at the thought of another whip-wielding adventure starring a geriatric Harrison Ford. But then the warning signs started to trickle in, like Shia LaBeouf getting cast in a role and the prospect of aliens appearing during the film's climax. However, most fans had faith in George Lucas to shed the negative opinions of the Star Wars prequels by delivering a return to form for Indiana Jones.

Unfortunately, 2008's Kingdom Of The Crystal Skull didn’t even come close to being a good movie. Between CGI gophers and monkeys, and the infamous “nuke the fridge” incident, the movie turned out to be two hours of pure devastation as audiences witnessed the final nail in Lucas’ cinematic coffin. And although Steven Spielberg was the movie's director, in recent interviews he freely admits that the story was all Lucas.