Continuity: When Riddick meets up with Jack/Kyra in Crematoria, she comes up behind Riddick and asks him if she should go for his sweet spot, Riddick grabs her wrist with his left hand and swings her into the bars. When she hits the bars he is holding her wrist with his right arm. Then a few seconds later you see his left arm again holding her wrist. With Riddick's left arm holding Kyra's wrist, his forearm is forcing her head to the side. This is made more obvious as Riddick then takes his right hand, grabs the bars and lifts Jack/Kyra up so she is now straddling his right arm.

Audio problem: Riddick, Kira and the Crematoria escapess are running across the planet surface, through the lava channels. Rounding a corner, Kira has lost sight of Riddick and calls his name, but her mouth doesn't move.

Continuity: In the scene near the end of the movie, where The Lord Marshall is choking Riddick, you can see that Riddick does not have his shiny eyes. You can see this when Riddick looks at the knife.

Continuity: At the Crematoria mountain, Kira gets stuck in a small hole after the sunrise. She tries to climb again, but the rocks are so hot, she can't even touch them. She crouches and talks to Riddick for a while. Then, while standing up again, she touches the rock wall, but doesn't appear to experience any discomfort from the supposedly baking hot surface.

Continuity: Leading up to the battle in front of the hanger on Cremitoria we get a good shot of Riddick's curved knives in their harness with the handles up by his shoulders. When he finally draws the blades in battle he reaches back behind his waist to get them.

Continuity: The character Imam has a large animal tooth on a necklace. Later than 5 minutes and less than 25 minutes into the movie Riddick and Imam are having an argument where in different shots of the same scene two different necklaces switch back and forth. The first, which is a significant plot point later on, is longer and plainer then the embellished, more curved second one.

Other: When the sun comes up over the mountains on Crematoria, it shines full view on Riddick's face and makes his goggles see-through. You can see Riddick's eyes without the contact lenses used to represent his nightvision.