I don't know what it is with me, but it relates to the people who just can't put a good book down. Even if a movie is B-rated and I can tell within the first 2 minute intro, I want to see where it's going. I will watch the entire thing from start to finish. I usually realize I wasted 2 hours of my life. From time to time though, I tend to wonder why others wouldn't accept the script or produce it as it's a good, but poorly shot, movie.
I will probably end up watching Her and not liking it.