Other mistake: When Timon meets Rafiki for the first time, Rafiki is hanging upside down, yet his beard is not affected by gravity and remains pointed upwards.
Other mistake: At the beginning, the pirates find about five tickets in the treasure chest - nowhere near enough to admit all the pirates into the theater.
Other mistake: This is a UK/US vocal talent variation. In the UK version the voice of the Ugly Stepsister is that of UK TV/Radio Presenter Jonathan Ross yet the vocal talents are credited as CNN talk show host Larry King. Also, the voice of the Red Carpet Reporter is none other than UK Pop Idol Extra presenter Kate Thornton, yet again, the voice is credited as Hollywood reporter Joan Rivers, whom the physical appearance of the character is based on. (00:28:20 - 01:03:50)
Other mistake: During the opening sequence, walk of fame parody, Lawrence Fishburne's star appears twice above Seal's star. (00:02:55)
Other mistake: When they first arrive at the North Pole, one of the elves appears to be sliding along. His legs and arms are not moving, and his head is not bobbing up and down.
Other mistake: Near the end of the film when Jack-Jack is manifesting various abilities, his first display is of the human-torch-type of superpower. This would have burned away all of his clothing, yet (for obvious reasons) his diaper remains intact. This is particularly apparent as designer Edna Mode's costume for Jack-Jack was earlier shown as fire-resistant, but he was not dressed in his outfit during this scene. (01:44:15)
Suggested correction: This is definitely intentional, not an error. We see Jack-Jack use his fire powers without burning his diaper in Incredibles 2. Having fire powers without burning clothes is just a retcon.
Other mistake: In the Arena Challenge scene, Nokama yells at Vakama to shoot the statue. In this shot, the back of her head passes through her armor, which cannot be possible with the actual Nokama figure. (00:21:49)
Other mistake: When Rebecca uses her computer to record movements in the greenhouse, the footage on its screen does not match with reality. (00:44:27)