4. Cache (2005)
Michael Haneke has blown up recently, having won two of the last four Palme d'Or awards from the Cannes Film Festival and earning multiple Oscar nods for his most recent film Amour. But in 2005, Haneke made an intensely suspenseful voyeuristic film about a family who are being stalked. Haneke lets his camera linger, with a prolonged early shot of the home of our protagonist family the Laurents. But we then find that this isn't just Haneke's camera, it's someone else's in the film. Who is videotaping the Laurent's home, and for what gain? And most importantly to this film, what does knowing that you're being watched do to you? In a bizarre and dark film of twists and turns, as well as Haneke's commentary on French/Algerian relations, Cache is an enigmatic depiction of what it feels like to be watched. If you haven't seen it, pay close attention to the final scene. Missing something relatively subtle in the final shot can completely alter the way you react to this film.