This movie portrays a former marine struggling with sleeplessness who drives a cab through the New York night (Robert De Niro) while attempting to connect with a woman working for a political campaign (Cybill Shepherd and Leonard Harris). He grapples with White Knight Syndrome as he tries to help a young girl forced into prostitution (Jodie Foster). Paul Schrader penned the screenplay, and Martin Scorsese directed "Taxi Driver" (1976), which offers an examination of a man’s gradual slide toward extremism after enduring the bleakness of life in a decaying urban environment—a grim version of New York City, particularly its theaters. The main character is presented as full of contradictions; he finds fault with what he sees around him but spends his free time at adult movie houses. There's also something unsettling about the idea of someone capable of violence being viewed as a savior. The film features Harvey Keitel as the girl’s exploiter, Peter Boyle as an older cab driver who takes Travis under his wing, and Albert Brooks as a coworker of the campaign volunteer. Scorsese even makes a brief appearance as a disturbed passenger in one of the cabs. It works well alongside other films Schrader was involved with, such as "Hardcore," “Cat People,” “Auto Focus,” and “Dog Eat Dog.” The film’s length is 1 hour and 54 minutes, and it was filmed on location in Manhattan and Brooklyn. GRADE: B+/A-

Source on TMDB