A great flick with Robert DeNiro when he was about 36 years old. Also Harvey Keitel, Cybill Shephard and a young, very yound Jodie Foster.
Here is a synopsis from imdb.:
A New York City taxi driver violently and brutally lashes out at the scum of society after encounters with several diverse individuals, including a beautiful campaign worker, an underage hooker, a murderous pimp, and a presidential candidate.
New York City cab driver Travis Bickle constantly, almost obsessively, reflects on the ugly corruption of life around him, and becomes increasingly disturbed over his own loneliness and alienation. In nearly every phase of his life, Bickle remains a complete outsider, failing to make emotional contact with anyone. Unable to sleep night after night, Travis haunts the local pornography emporiums to find diversion, and begins desperately thinking about an escape from his depressing existence
