Sophia - imaginary or real?
Most people here seem to think that Sophia was not real, but was instead somebody that Sara's mind imagined as a coping mechanism. Either that explanation is wrong, or else a very SERIOUS oversight by the makers of the movie.
Sophia being only somebody that Sara's mind imagines as a coping mechanism makes a certain amount of sense from a plotline point of view, but it makes NO sense from a viewer's point of view. If the movie's makers didn't make an oversight with the Sophia character (& I think that they did, but for the sake of spelling out their oversight, I'll consider the possibility that they didn't), then Sophia has to be REAL. Remember, although this is actually a movie, it's presented as a documentary style home video recorded by somebody (Sarah) who DIDN'T do any EDITING to it. Therefore, if Sophia really is imaginary, & not real or a ghost, Sarah should be able to see her, but the VIDEO CAMERA (& the viewers) should NOT.
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