Martin Scorsese's 'Taxi Driver' (1976) remains a landmark of American cinema, a searing psychological portrait of urban alienation. Robert De Niro delivers a career-defining performance as Travis Bickle, a lonely, insomniac Vietnam veteran who drives a cab through the nocturnal filth of 1970s New York. Disgusted by the city's perceived decay, his fractured mental state leads him on a misguided quest for purpose, first through an awkward courtship of a campaign worker (Cybill Shepherd) and then a violent plan to 'rescue' a teenage prostitute (Jodie Foster). The film is a masterclass in character study, with Paul Schrader's taut screenplay and Scorsese's gritty, immersive direction creating an atmosphere of palpable tension. Bernard Herrmann's haunting, jazz-infused score perfectly complements the neon-drenched cinematography. 'Taxi Driver' is essential viewing not just for its iconic lines and imagery, but for its unflinching exploration of loneliness, rage, and the dark side of the American psyche. Its power and relevance endure, making it a must-watch for any serious film enthusiast.