10 Mind-Bending Thrillers That Will Melt Your Brain

3. Fight Club

A rare movie that exceeds the book it is based on, David Fincher's masterful Fight Club revolves around a narrator referred to by most fans as Jack (Edward Norton), who suffers from insomnia and is essentially eking his way through a comfortable, materialistic middle-class existence. On a flight, he has a chance encounter with a soap salesman named Tyler Durden (Brad Pitt), who takes him under his wing when his apartment is destroyed in a "freak explosion."

Together, the two set up Fight Club, where angry young men come to beat the snot out of each other in order to vent their existential angst. Fight Club eventually becomes Project Mayhem, an anarchist organisation with countless members, and with numerous cells capable of acting independently of one another. As everything begins to get out of hand, we're smacked in the face with the unforgettable twist - Tyler Durden is Jack. They are the same person, and when Jack believes himself to be asleep, Tyler is in fact taking over.

As Tyler plans to blow up a number of credit card buildings to set the debt record back to zero, Jack takes charge and shoots a hole through his own cheek, which convinces his mind that Tyler is "dead", appearing to regain his sanity as the credit card buildings nevertheless collapse.