Martin Sheen oli muuten aikuisten oikeasti humalassa siinä leffan alkupuolen peilikohtauksessa.
IMBd.com:
An early scene where Captain Willard is alone in his hotel room was completely unscripted. Martin Sheen told the camera crew to just let the cameras roll. Sheen was really drunk. He punched the mirror, which was real glass, cutting his thumb. Sheen also began sobbing and tried to attack director Francis Ford Coppola. The crew was so disturbed that they wanted to stop shooting, but Sheen wanted to keep the cameras going. At the time he was fighting a drinking problem and his own issues. He got so caught up in the scene and his own inner struggles that he hit the mirror. He believed that continuing the scene would help him face his problems. This was revealed later in a conversation with Coppola and Sheen, and has been shown in the Redux version. (https://www.imdb.com/title/tt0078788/trivia/?ref_=tt_trv_trv)