6. The Machinist (2004)
Starring Christian Bale and directed by Brad Anderson, this one is a dark and sinister psychological thriller. This is a story of strange and bizarre incidents. The mystery is gripping. The atmosphere created through performances is palpable. The story is riveting, unexpected and yet logical. The movie is thoughtful and beautifully shot. It has the potential of genuinely creeping you out. This complex masterpiece is a must for intellectuals.