El tercer hombre
Producer David O. Selznick, an amphetamine user, would often dictate long and rambling memos to his directors under the influence of amphetamine. The documentary "Shadowing The Third Man" relates that Selznick introduced "The Third Man" director Carol Reed to the use of amphetamine, which allowed Reed to bring the picture in below budget and on schedule by filming nearly 22 hours at a time.