When Biff cocks his revolver in the alternate 1985, you notice that the chambers rotate in the wrong direction. This is either a flipped shot or a mistake caused by the prop gun. See more...
When Marty is waiting for Griff in the cafe he plays a videogame with two young boys. One of the boys is a very young Elijah Wood. See more...
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The entry you are marking as a duplicate is:
|Title||Back to the Future Part II|
|Original entry||At the end of the preview for BTTF3, Marty and the Doc are standing in a position for their photo to be taken. The photo is taken, but on the photo their hands are in different positions to what they were when the photo was being taken.|