The Matrix is a 1999 science fiction-action film written and directed by Larry and Andy Wachowski and starring Keanu Reeves, Laurence Fishburne, Carrie-Anne Moss, Joe Pantoliano, and Hugo Weaving. It was first released in the U.S. on March 31, 1999, and is the first installment in The Matrix series of films, comic books, video games, and animation. The film describes a future in which reality as perceived by humans is actually the Matrix: a simulated reality created by sentient machines in order to pacify and subdue the human population, while their bodies' heat and electrical activity are used as an energy source. Upon learning this, computer programmer "Neo" is drawn into a rebellion against the machines, involving other people who have been freed from the "dream world" and into reality. The film contains many references to the cyberpunk and hacker subcultures; philosophical and religious ideas; and homages to Alice's Adventures in Wonderland, Hong Kong action cinema, Spaghetti Westerns, dystopian fiction, and Japanese animation.