Martin Scorsese, 1976. Travis Bickle alone in 70s NYC. 'You talkin' to me?'
From Wikipedia
Taxi Driver is a 1976 American neo-noir psychological drama film directed by Martin Scorsese and written by Paul Schrader. Set in a decaying New York City following the Vietnam War, it stars Robert De Niro as veteran Marine and taxi driver Travis Bickle, whose mental state deteriorates as he works nights in the city, eventually having a mental breakdown and becoming a vigilante. The film also features Jodie Foster, Cybill Shepherd, Harvey Keitel, Peter Boyle, Leonard Harris and Albert Brooks.