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Darren Aronofsky wanted to shock, enrage and leave his mark with this psychological drama that explores how addiction can consume a person's life until it becomes a manifestation of their own fears and insecurities.
But beyond that, Requiem for a Dream is a reflection on alienation, escapism and individualism.
Starring Ellen Burstyn, Jared Leto, Jennifer Connelly and Marlon Wayans, the film is based on Hubert Selby Jr.'s 1978 novel of the same name; Aronoffs Key co-wrote the screenplay with him.

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Set to a theatrical score composed by Clint Mansell, the film depicts four characters affected by drug addiction and how they alter their physical and emotional states. It was a success in itself.
Aronofsky is not only exposed a moral discourse on drug use, he also took care to present obsessions, paranoias, despairs and events that take the person to the limit, to the point of stealing, killing and even selling bodies, for example, to have a little more.
More than two decades after its release on the big screen, Requiem for a Dream remains one of the most disturbing films in the history of cinema. Visually and aesthetically, the film stands out for its narrative rhythm, score and editing that defies all trends of the time.

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In this film, the condemnation of society is clear: the individual is alone, without referents, unable to distinguish right from wrong. Aronofsky argues that our world is full of challenges and alienation..."