Terrible ending, made the movie overall 'eh" (probably spoilers)
With a movie like this you hope for something a little better.
The movie plods along, and since we're given to believe that everything in the photo has to happen, there's not really much thought put into the whole predestination thing till the end. The pacing is a little wrong as well, but in a way that seems to lead up to something.
But no, not so much. So we spend the movie thinking if they change time, Bad Things, then it turns out not really, and we're told someone's changing things, but then oops, turns out she can't.
Anticlimactic and not the payoff I'd hoped for after sitting through that. The camera was a new twist at least.