Continuity mistake: After a passing train disturbs the Mousekewitz's home and extinguishes their candle, Papa strikes a match and lights it up. He tosses the match somewhere offscreen, but one shot later it appears right in front of his feet. (00:04:55)
Continuity mistake: When Tiger is hanging onto the train bound for Green River, a dog rips a large chunk of fur from his tail. But as Tiger gets thrown from the caboose into the path of another train, his tail has regrown all of its lost fur, within the span of two shots. (00:18:30)
Continuity mistake: After Fievel reunites with his family at Green River, he can be seen sitting on a pair of saloon doors. But right before a cat busts through them, Fievel switches from one door to the other between shots. (00:41:35)
Factual error: In one of the train cars on the way out west, upon being asked by one of his henchman, "When are we going to eat the mice?" Cat R. Wahl replies, "Which would you rather have, the crouton or the entire Caesar salad?" Caesar salad was not invented until the 1920's and the movie takes place in the late 1800's.
Factual error: Sometime when Chula the spider is chasing Fievel, he sings a version of "Itsy bitsy spider." However the film takes place in the 1890's and the song "Itsy bitsy spider" was not written until 1910.
Suggested correction: It had been around for much longer than that, that's just the oldest book we have a record of which listed it.
Except the 1910 version was the "Spider Song" since it didn't use the words "itsy bitsy" and those lyrics didn't come until later in the 40's.
Continuity mistake: Throughout the movie, Tanya goes from wearing shoes to barefoot.
