- Crew or equipment visible: The green screen used to create the mountains and deadly sunrise on Crematoria is reflected in Riddick's goggles.
- Continuity: When the merc ship is coming in to land on Crematoria, the pilot's goggles are on/off between shots.
- Audio/visual unsynchronized: While Running through the Canyons of Crematoria the second time Kyra yells, "Riddick," her lips don't move
- Revealing mistakes: When approaching Crematoria, a close up of the 'Course Plotted' display shows -295F and +702F. A crew member then reads the display stating "700 degrees on the day side; 300 below on the night side". Later, you see someone incinerated on the day side in seconds. Actual cremation takes place at around 1400F to 1800F and takes over two hours, so cremation in seconds at just 700F is not possible. It is explained in the DVD special features that the scale should be in Celsius. However, this is theoretically impossible since -300C is below absolute zero.
- Crew or equipment visible: When the Holy Man is cornered by the necromonger before attacking each other, the reflection of the lights on the set can be seen in his glasses.
- Revealing mistakes: When Riddick climes the rope on Crematoria, Toombs is hanging on the same rope, but when Riddick reaches the top, it's obvious that there's no weight on the rope below Riddick.
- Continuity: When Kyra removes the cup that Riddick used to kill a guard on Crematoria, the cup has a badly broken and jagged rim and its handle is attached about an inch below the rim. In the next shot where the cup is completely visible, the cup's rim is less broken and jagged and its handle is attached at least two inches below the rim. The cup she places on the rock appears the same as it did when she first picked it up.
- Crew or equipment visible: During the scene just before Riddick tames the Hellhound on Crematoria, he wakes suddenly on a narrow ledge. Over his right shoulder you can see a safety wire.
- Crew or equipment visible: When Imam is talking to Riddick about him leaving Jack, the reflection of the Camera lights is visible on his glasses.
- Continuity: When the criminals are running through the clouds of falling ash, they get it all over their clothes and their hair, then an instant later, all the ashes are gone.
- Revealing mistakes: When Riddick is crouched on a perch looking up at the Necromongers entering the atmosphere of Helion Prime, the digital addition of the 'shine' of his eyes doesn't match up with his eye and head movement.
- Continuity: When Imam is checking if the way is clear for his wife and daughter, directly after the initial Necromonger landing, the debris on the ground around him moves from one shot to the next.
- Continuity: After the fight in front of the hangar on Crematoria, Kyra is hiding behind a rock. In the wide shot, next to her is a halberd with a cross-shaped blade. In the close-angle, she is holding on to a spear with a triangle blade
- Incorrectly regarded as goofs: After Riddick is left on Crematoria by the Necromongers he takes shelter in a garage. Because the planet is quite obviously devoid of any humidity at all, the thin atmosphere does not transmit heat. Therefore, all shade on the planet, including the "night side" (the half of the planet that is in it's own shadow) is much cooler. A similar effect can be seen in desert areas of Earth. Ironically, the extremes mentioned mean that the garage actually would require heating of it's own to keep the occupants alive.
- Continuity: The Necromongers invade Helion Prime, and Riddick escapes them but is caught by the bounty hunters. The Necromongers are then seen discussing how they will invade Helion Prime. Presumably the editing is not right - the Necromongers are discussing something that has just happened.
>>> WARNING: Here Be Spoilers <<<
Goofs below here contain information that may give away important plot points. You may not want to read any further if you've not already seen this title.
- Revealing mistakes: SPOILER: After the Necromongers leave Riddick to, he talks to the purifier. He then walks out into the sunlight and his entire body bursts into fire and dissolves. But if you look at the bottom right of the screen, you can clearly see a skull and some other bones.
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