Mistakes

The bad guy soaks the woman with fuel. The bad guy then shoots Denzel, and runs outside. He then fires at a propane tank that causes the entire building to explode. The fireball is enormous, and flaming debris is everywhere, including being inches from the woman. But she never ignites. See more...

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Deja Vu (2006) - 3 questions

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Genres: Action, Drama, Romance, Sci-fi, Thriller

The "questions" section is for any random questions that occurred to you while watching this film, or anything you didn't entirely understand, and which Google or the IMDb can't help with. Submit them as a question, and hopefully someone will answer (the bold comments in brackets) - check back regularly. If the answer is wrong, or missing information, please use the "clarify answer" option. Don't feel limited - want to know what music played in a certain scene? Whether this was the first film to use a certain effect? Here's the place to ask!

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Entry Look carefully at the beginning of the movie and you'll see someone watching the explosion while wearing the goggle-rig. Can anyone explain why? [I have watched this multiple times and cannot see anyone watching the explosion. You should be more specific about where the person is and what he's wearing.]
Entry When Shanti draws the diagram from the past to future (along with the river explanation); does it have any relevance with the fact that there cannot be two Doug's? My mum has a theory that the two things relate but I am not too sure. Can anybody clear it up for me? [If there are multiple parallel timelines/universes, there should be one Doug for every timeline (ignoring the notion that in some parallel timelines he might have been hit by a bus and died early). Doug jumping from his own branch of the timeline to a "root" of that branch seems to make a new branch from the changes, but the fact that there are two Dougs existing in the same timeline (with the "present" Doug unaware) doesn't seem to cause any large problems. Note, though, that future Doug is trapped in the car and explodes (removing any evidence of his existence) before there could ever be a chance for him to run into his past-self. You could see this as time healing itself and preventing two versions of the same person ever occupying the same space.]
Entry So I saw the movie and understood most of it but at the end the man that tried to stop the ferry from blowing up dies in the car. So this means that he duplicated himself. So if they use that machine, could they keep using it to duplicate people? [He does not duplicate himself. He travels back in time to a point where his past self exists, so there are 2 of the same person. One simply has a few more hours of memories. Yes, in theory by traveling back in time this way, he could create a situation where there were many of him at one time.]

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