Inception, American science fiction thriller film, released in 2010, that explores the boundaries between dream and reality. Inception centres on brooding “extractor” Dom Cobb (played by Leonardo DiCaprio)—a thief who invades targets’ dreams through a chemical-induced shared dream state in order to steal valuable information.

The film stars Leonardo DiCaprio as a professional thief who steals information by infiltrating the subconscious of his targets. He is offered a chance to have his criminal history erased, as payment for the implantation of another person's idea into a target's subconscious.