Continuity: When Laurie spots Amy painting in Europe, he drops his cigarette twice.
Anachronisms: The opera which Jo and Frederick watch is Bizet's "Pearl Fishers", which was first performed in Paris in 1863. However, the opera was not performed in the U.S. until 1892, long after the action of the film.
Continuity: When Amy discovers that Jo will be her teacher, she sulks twice.
Continuity: While walking to school, Amy drops her chalkboard, then picks it up twice.
Continuity: When Jo is narrating the end of her letter to Laurie about Beth, she asks him to "come home to us" but the close-up on the letter shows that she really wrote "come home to me".
Continuity: Before running into Friedrich on the street, the hem of Jo's dress is soaked in mud. Afterward, in his apartment, it is clean.
Errors made by characters (possibly deliberate errors by the filmmakers): When looking at Laurie through the window, Jo wonders if he is a captive, "like Smee in Nicholas Nickelby". The character she is referring to, however, is called 'Smike'.
Revealing mistakes: When Jo tells the family she sold her hair for the train ticket, it looks as if her long hair is bundled under her wig. In real life, Winona Ryder's hair was very short and there were two wigs made for Jo March, one long and one short. What looks like long hair bundled up is really Winona's hair peeking out below the wig.
Factual errors: The soldiers' uniforms in the various party scenes have both stripes on the sleeves and shoulder boards. In reality, stripes on the sleeves denote an enlisted man, and shoulder boards denote an officer. They are thus mutually exclusive and both would not have been worn by the same individual.