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Character mistake: In the final scene Cobb's children class him "daddy!" but Cobb's son also calls him "Leo!"
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Character mistake: Chris explains about the APV being behind the door and specifically states it has 16 wheels. When we see the APV it has 4 wheels on each side. Meaning 8 in total. For it to have 16 wheels as stated, all the wheels will have to be doubled up. However its clear that at least 2 separate wheels are single. Since Chris is right with everything else he has said in regards to the prison, there's no reason he would be wrong about this one thing. (00:56:00)