Revealing mistake: When Ariadne is pulling the two huge mirrors close together underneath the bridge with Cobb, watch her when she is closing the second mirror. She steps over something even though there is nothing present for her to step over. There must have been a green screen frame there for her to step over.
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Inception (2010)
Ending / spoiler
Directed by: Christopher Nolan
Starring: Michael Caine, Joseph Gordon-Levitt, Leonardo DiCaprio, Tom Berenger, Tom Hardy, Cillian Murphy, Marion Cotillard, Elliot Page, Ken Watanabe
Cobb reveals to Ariadne that he knows inception is possible because he did it to his wife. He implanted the idea that "the world she is living in is not real," allowing them both to escape the deepest subconscious. The idea grew, causing her to kill herself in real life. Cobb talks to Saito, now an old man, in the deepest layer of subconscious and reminds him about their arrangement. Saito reaches for his gun. Cobb wakes up, passes through customs and meets his father. He goes home and sees his kids' faces. The last shot is of Cobb's totem, the spinning top... either spinning forever which means he's in a dream or about to topple which means he's in reality...
Count3D
Trivia: The song that is played to wake everyone up is Edith Piaf's "Non, je ne regrette rien". Marion Cottillard (Mal) played Piaf in the biopic La Vie En Rose and won an Oscar for it.
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Chosen answer: The details are never explained in the depth, but all the dreamers are connected via the briefcase, so it seems likely that the briefcase acts in some way as a networking hub for them to share the dreamspace.
Tailkinker ★