Other mistake: In the credits of the movie, the creator of the original comic's name is misspelled as "Bob Macleod" when it should read "Bob McLeod."
The New Mutants (2020)
1 other mistake - chronological order
Directed by: Josh Boone
Starring: Anya Taylor-Joy, Maisie Williams, Blu Hunt, Charlie Heaton
Continuity mistake: Danielle is running and slams into a force field. She gets a bloody nose. Then she runs back to attack Illyana, and falls when Illyana disappears. She looks up, and her nose in not bloody any more. (00:13:25 - 00:14:20)
Rahne Sinclair: Don't go! It'll kill you.
Roberto da Costa: She's right, it's magic.
Illyana Rasputin: So am I.
Trivia: This is the third film in the X-Men franchise to make reference to the villain Mr. Sinister, following X-Men: Apocalypse and Deadpool 2, by way of the Essex Corporation (Nathaniel Essex being Mr. Sinister's real name). The logo for the Essex Corporation is a diamond, similar to the ones Mr. Sinister has on his forehead and chest in the comics. Unfortunately, since this is the final film in the Fox X-Men franchise, Mr. Sinister himself never made a physical appearance in any of the films.