These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
They Wasted a Perfectly Good Plot: For the most of the film is an interesting Mind Screw; struggling to comprehend what's going on as it becomes more and more evident that there might never have been a daughter. It would have made a clever reveal but instead it turns out to be a over-complicated terrorism scheme and that ends with Kyle saving the day, finding her daughter Julia, and walking dramatically off screen as the plane explodes and the other passengers clap for her. In other words, completely generic.