I saw Riddick last night and enjoyed it very much. No, it wasn't a perfect film, but I knew going in that I wasn't going to see an Oscar contender!!! The action and special effects were great, the story is nothing we haven't already seen before though it was well done, and the acting was as expected for this genre. What it does lack in originality, it makes up for in intensity. It is a violent film, but it is action violence and nowhere near "torture porn". Yes, you will have to suspend a good deal of belief, but no more than in any other action film. If you are looking for a heartwarming tale of humanity at it's best -- skip this one. If you are expecting a modern retelling of 2001, than forget this one. If you are looking for mindless entertainment with a lot of action and a plausible storyline, this is for you.