I just watch a movie for the emotional experience and absorb it as a whole. Some other people are fact junkies and got to know every little detail. It all depends on what you want to get out of it.
I know if I analyzed every scene, I wouldn't enjoy it as much. Besides, my memory is crap which doesn't mean I'm not intelligent. It just sounds like work to me. I think it's a competition thing that guys do anyways.
I'd have to watch a movie 10 times for me to know most of it.