Went to see this tonight. Will Smith was great. Really heavy story though, I think the majority of folks were turned off by the intensity of the movie. I could hear there comments during the movie and a few people did leave the movie. There are some pretty well done terror scenes in the movie. If your not accustomed to watching horror movies then you may not be ready for it. Some of the it is similar to Resident Evil.
I like it overall and it was worth seeing in the theater to me. I am into SciFi stuff though. I am not spoiling it for anyone here so if your looking for more plot info then go see it.