It was very refreshing to watch a science fiction movie with a great story and fantastic acting.I enjoyed Vin Diesel' s'performance as Riddick. He made the movie with his one-liners. Casting was very good. Special effects were incredible. I would give it 9 out of 10 stars. I hope there is a sequel to follow this movie. There appeared to be a time span between Pitch Black and Chronicles of Riddick but they bridged the gap quite well. A prequel to Pitch Blackwould help to establish who Riddick is and where he came from. This movie definitely took me to a place few science fiction movies do now days. I predict that Riddick will be entertaining us with more movies in the future.