Let me begin by saying the movie was great throughout. It's original, thought provoking, and you are always suspenseful throughout the whole movie, guessing as to what could come next. For the budget it was made on, the movie looked quite professional, with great acting as well. But one of the big problems I noticed people had with this film was the plot holes, the missing details. Luckily, these aren't huge gaping holes that make the main story confusing, just details like why the child was acting so strange.
There are two ways you could look at this though. You could see it as the directors being lazy and not explaining everything, or you could see it as the directors purposely leaving out those details, making you actively think about the video. I tend to think the latter, especially in this case. People said that inception was confusing too, but that's what made it so much better then your average movie. Rarely does a flick ever come along that makes you think instead on just passively watching a TV screen, and this is one of them.
