Other mistake: In the scene where Jason drops from the bridge to the boat, you see him grab his left leg/knee in pain. But throughout the rest of the film, you see him limping on his right leg.
Other mistake: When Creasy is coaching Pita in the home swimming pool he calls her by his name, Creasy, not Pita.
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 scene where the dead bodies are hanging, Pete has "naughty cal" carved in his chest but Carlos, the one who this was written on before doesn't have it anymore.
Other mistake: 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.
Other mistake: After the cops pull Kevin Dillon from his car with aluminum foil on the windows, the aerial view reveals that both black and whites have the same number - 405 - painted on the roof.
Other mistake: Van Helsing's ring fits his as a human, but in the climactic fight he turns to werewolf form and back and is still wearing it. He didn't have time to take it off and put it back on, so either one of his wolf fingers should be horribly, painfully cramped or the ring should have broken. No one insinuates that the ring has magical powers of any kind to prevent this.
Other mistake: When the remaining agents are sitting at tables drinking coffee, Vince glances up at the clock which says 12h00. He then says "It's two o'clock and we're still here. We're still here and it's two o'clock." (00:37:30)
Other mistake: When Evan finishes talking to the "prostitute Kayleigh" on the restaurant, he goes to his room, which finds his friend having sex with a girl. When Evan demands them to leave the room, he sits on the chair, and opens his diary, but you can see that when he opens it, the pages are empty. He doesn't turn to another page before he begins to read, so he appears to be reading from the blank page.
Other mistake: The engagement ring that Mia gets at the beginning is larger than the one she gives back to him at the wedding.
Other mistake: When Larry is taking the cigarettes out of the box, look at his hand. It has a white paint drop or white dust on it, but throughout the scene it disappears and reappears. (00:55:10)
Other mistake: At the end we see the reflection of a street in Blade's sunglasses but nothing is reversed like it should be (example: the taillights of the cars can be seen on the right side, they should be on the left in the reflection).
Other mistake: When ghost gives B the needle in the bathroom and after Ryler takes it away and squirts it out, you can hear the needle being thrown to the side. And she instead licks it off the floor instead of just getting the needle again.
Other mistake: When in the Mayan temple Flynn pools out the book. It is completely intact and the pages are flat and even. A book which has been under water for a long time (during their swim) would not look like that.
Other mistake: When Robin Williams starts to download Banister's life files the computer says there are 544,628 hours of footage (approx 62 years) yet shortly after a newspaper headline states that Banister died aged 54.
Other mistake: In the end credits, Allison's surname is given as "French". This is her sister's married name, which Allison would obviously not share - Allison should still have their maiden name, which is Henderson.