Ridley Scott's (Black Hawk Down, Gladiator) science fiction masterpiece that never really achieved mainstream acceptance, Blade Runner easily deserves its spot in the canon of all-time greatest science fiction films.

Fresh off the success of Star Wars and Raiders of the Lost Ark, Harrison Ford took a departure from those lighthearted roles to play a dour investigator tasked to track down mutinous free-thinking 'replicants', human-looking androids originally built to serve humans. As his pursuit of the replicants continues, he's forced to consider what it means to be 'human' and to ponder why life is so precious.

Because the film was not the usual shoot-em-up science fiction fare that makes studio executives so happy, director Scott was forced into many editing concessions before the original release of the film. As such, there are multiple versions of Blade Runner available. If possible, get the 'Final Cut' version released in 2007, as it was re-edited by Scott personally and is the most true to his original vision of the film.