Inception is a 2010 science fiction action film written and directed by Christopher Nolan. Leonardo DiCaprio stars as Dom Cobb, a skilled thief who specializes in stealing information by infiltrating people's dreams. The movie explores the concept of shared dreaming and follows Cobb's mission to plant an idea in a target's subconscious. Inception received widespread praise for its mind-bending plot, stunning visual effects, and thought-provoking themes. DiCaprio's performance as Cobb was highly praised, showcasing his versatility as an actor.