Inception is a 2010 science fiction action film directed by Christopher Nolan. The film follows a professional thief, played by Leonardo DiCaprio, who steals information by infiltrating the subconscious of his targets. Inception explores the concept of shared dreaming and blurs the lines between reality and dreams. DiCaprio's character, Cobb, is haunted by his own past and struggles to distinguish between what is real and what is a dream. The film received critical acclaim for its complex narrative and stunning visual effects.