Man.. Riddick is probably one of the best characters to exist in sci-fi in years and years.
This movie is fantastic, if you're a sci-fi geek or action geek, go see it.
The effects are incredible, they look almost photoreal at times. I dunno, I'm not gonna get into some long, drawn out discussion about why the movie was good, it just is, great even, for a sci-fi epic. I wanted to see more of the Toombs bounty hunter character, that was really my only nitpick with the film, otherwise, it's fantastic. David Twohy proves himself as an epic director with this movie.
And just to be an asshole, you should know about Vin Diesel, he does action roles because he likes to do them, the truth is he's an incredibly well read fellow and a champion of the indie circuit, especially short films, he puts out a series of dvds with short films done by indie directors on them and quite a few have been discovered and moved on to bigger and better things.
-The Schnoo