Regarding Identity (non-spoilery):

I figured out why this movie left such a sour taste in my mouth. The actors were great, especially John Cusack whom I was never a big fan of before. The set was creepy, the scenarios were appropriately mysterious and cool, and truly, the plot itself, as it unwound, was fascinating. Great idea.

However. If you're writing any sort of suspense scenario and your idea is clever enough, you don't have to deliberately lead your audience astray, which is what happened in this film. The main plot really was very good, but the flailing arms distraction was unnecessary - it didn't add anything to the main story and just felt like the author being desperate to keep us from figuring out what was going on by willful misleading. Which, as mentioned, wasn't necessary, because I doubt few people if anyone saw *that* coming.

Not a dealbreaker for seeing it, but the writer should've given himself more credit.