Steve Schapiro: "This image was shot after the most violent scene in the film - the last sequence with all the shooting and stabbing and wrestling.

"When Scorsese shouted 'Cut!', everyone just collapsed about laughing - it relieved a lot of the tension.

"During filming, you could sense that this was going to be one of the greatest films of all time. The intensity of the acting really boosted the feeling that Taxi Driver was destined to be a classic."