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
Directed by: Josh Boone
Starring: Anya Taylor-Joy, Maisie Williams, Blu Hunt, Charlie Heaton
Continuity mistake: A doctor comes into a patient's room. The door swings inward to the right, and it has a heavy lock on it. When she leaves she closes the door. It swings inward, but to the left, and it has no heavy lock. (00:04:10 - 00:08:25)
Sam Guthrie: This isn't a hospital. It's a haunted house.
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.