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Inception, American science fiction thriller film, released in 2010, that explores the boundaries between dream and reality. Inception centers 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. Having a reputation for being the best in his business, Cobb is commissioned by wealthy businessman Mr. Saito (Ken Watanabe) to take on the exceptional feat of reverse extraction—planting an...