Taxi Driver (1976) - 5

The story is very slow moving in this film. The theme of the film is the loneliness and isolation of the main character, Travis. He is friendless and this leads to more and more disturbing behavior as he tries to figure out what he is living for. He has a very pessimistic view of the world (sometimes accurate, sometimes not). It is hard to know whether this film also has hints of commentary on the Vietnam war, which Travis has come back from and is now trying to integrate back into society. As a side note Robert De Niro also plays in Deer Hunter which has a similar theme.