I was skeptical to watch it at first because it stars Vin Diesel as the main role and he still hadn't impressed me much. Also because it was on SciFi, and movies on SciFi are usually extremely corny. But a friend recommended it, so I watched it. It turned out to be an amazing movie with my original doubts completely gone.
The only thing I can truly say I didn't like was the fact that even though Riddick tells them not to do something, they do it, and the raptors get them. I know, you can't trust him, blah blah blah, but honestly.
this is a movie you know you ought to hate, but you don't for some reason. i think that reason is the first twenty minutes. they actualy made you care a bit about the characters, and the photographywas, while a bit over the top, rather well done.