O'Brien auditioned for the role of the young Ruth Gordon but was felt to be young to play the part.
O'Brien was offered the role of Alice in this movie, when it was to be part animation and part live actiton, but her mother did not think Walt Disney offered enough money so she did not make the movie.
Margaret O’Brien was one of the actresses who screen tested for the role of Judy, and lost the role.
Did you know that Margaret O'Brien was not the only choice for this movie? (click to learn more)