This is perfect if you're looking for some action/thriller and not over the top horror. There were scenes that would get your heart beating but nothing that would give you nightmares for the rest of your week. Ha Ji Won is in the cast, what more to say? She was amazing in this, completely fantastic. She did all the action scenes wonderfully. If you're expecting fantastic CGI and something really deep and mind-boggling this is not the movie for you. Saying that though, the effects weren't terrible but definitely not Harry Potter realisitc. Overall it's definitely a thumbs up for a weekend watch when you're in the mood for something scary but not scarring.