X-Men: Evolution

Shadowed Past - S1-E10

Other mistake: The guitar next to Rogue's bed has position markers on all of the odd-numbered frets, beginning with the first. Position markers on guitars start on the 3rd fret, and sequentially follow on the 5th, 7th, 9th, 12th, 15th, 17th, 19th, and 21st frets (and 24th where applicable).

Phaneron

Grim Reminder - S1-E11

Other mistake: The trees that the brainwashed Wolverine slices down, while chasing after Kitty, fall to the ground too slowly. They should fall quickly as a large, heavy object would, but instead float down like a feather.

Phaneron

Day of Recovery - S3-E1

Continuity mistake: When Nightcrawler teleports into the police car, the seat belt is buckled around him. How did the seat belt buckle itself around him? The police wouldn't have buckled the seat belt for no reason.

Phoebe

More mistakes in X-Men: Evolution

Jean Grey: You've been given a wonderful gift.
Kitty Pryde: I don't have a gift, just a curse.
Jean Grey: Only if you let it be.

More quotes from X-Men: Evolution

Retreat - S2-E12

Trivia: When one of the Bigfoot hunters talks about his whistle, he says to go to the Bigfoot shop and ask for Mulder. Mulder is the Agent from The X-Files (X-Files music plays in the background when he says this).

Piemanmoo

More trivia for X-Men: Evolution