The Matrix is a science fiction action film directed by the Wachowskis. Keanu Reeves plays the lead role of Neo, a computer programmer who discovers that the world he knows is actually a simulated reality created by machines. The film explores themes of reality, identity, and the nature of existence. With its groundbreaking visual effects and thought-provoking storyline, The Matrix became a cultural phenomenon and is considered one of the greatest science fiction films of all time.