Riddick - I am not sure what to make of it but it sure isn't a great movie.
First 20 mins of the movie with just Riddick on the planet felt wrong somehow, it was dying for some proper human to human fighting sequence.
Then the merchs turned up, he didn't hunt them for long at all !
Dodgy CGI, terrible acting from some eastern european accent bloke, and I feel no chemistry between Riddick and Starbuck from BSG.
All in all a very flat movie and doesn't add anything to the mythology of Riddick at all. In fact, it made him more human.
4/10