Jake Gyllenhaal starred in a high-concept sci-fi movie in 2011 which ended in such a way that it seemed to brilliantly set up a sequel, but the project has yet to be revisited. The movie in question is one of Jake Gyllenhaal's best movies but it's quite often overlooked in favor of the actor's more well-known films. Granted, it could easily fall into the group of confusing movies that only make sense right at the end, but its biggest twists and turns are artfully foreshadowed throughout its 90-minute runtime.

2011's Source Code follows Gyllenhaal's Captain Colter Stevens as he's forced to experience the same eight-minute sequence of events over and over again in an attempt to discover the identity of a domestic terrorist who is gearing up to strike again. Although Source Code initially deceives its audience into thinking the story belongs to the category of cool time loop movies, it's...