10 Movies That Made You Most Question Your Own Reality

9. Moon (2009)

Imagine it. You're working on the moon as the sole resident of a lunar mining base. You're finally reaching the end of your three year contract and you're eager to get home to your loving family on earth. The problem is, after having a minor accident on the job, you overhear the bases artificial intelligence GERTY receiving suspicious instructions from the company you work for. That's when you discover an older but identical version of yourself alive on the base. Duncan Jones's debut film explores the monotony of everyday life and then flips it completely on its head. What if everything you assumed to be real was actually just a construct? What would you do if the world turned against you and even your own family are no longer interested in you? Moon explores similar issues to Blade Runner in a setting inspired by the stark desolate science fiction that became popular in the 1970's. Feeling paranoid yet? Take a different route to work today. If you spot a clone of yourself making the same journey, now is the time to freak out.