Excellent film! I won't say anything specific until later on but I really liked it. Similar to CaptainCanada I could guess the general ending but I had no problems with that as the ending was exactly what it should be.
Just got back. Lukewarm I liked a lot of it but I hated a lot as well. There was too much in there that felt like "normal movie cliche stuff" for my liking.
My favorite moment is the scene where you actually see a couple of bats fly.
The moment should have come earlier in the film, because it didn't cut too well with its parallel storyline.