Factual error: After Oro Dassyne has boasted about his fortress' defenses and the droid standung by him announces that he has spotted two Jedi approaching, Dassyne snatches the binoculars from him to take a look himself. Curiously, he holds them at a very different angle, i.e. he is not looking into the same direction the droid was looking, and still he spots the Jedi immediately.

Continuity: After his duel against Dooku, Grievous is seen putting his saber away. When he puts it on the belt, it has no spikes, but in the close up two spikes can be seen at the bottom.

Continuity: After Palpatine and Windu have informed them about Grievous' possible location on Nelvaan, Obi-Wan and Anakin discuss the new mission. At first, the two sit quite close together, but in the next shot they sit much further apart.

Other: When Anakin returns from the infiltration of the enemy city, he sits down and says 'Lunch'. But he moves his lips twice for a one-syllable word.

Continuity: When Anakin sucks the worm into his mouth, the sewer map is revealed underneath. But there is also a heap of dirt and bugs on the parchment when he sucks the worm in; while in the shot where the map is seen in full, there are only a few bugs scattered on the sheet.