- Development Hell: Bakshi intended to make this as his first film, but Krantz instead suggested a film based off another property, leading to Fritz the Cat.
- Enforced Method Acting: Bakshi would intentionally give Terry Haven vague directions to make her more irritated while recording her lines for Ida. He would sketch her when she was especially pissed and pass the drawings onto her animators.
- Executive Meddling: It dodges the bullet from this. During production, Ralph had a bit of a fallout with the producer for not getting paid much from Fritz's success. Ralph was then fired from the film and the direction was given to animation legend Chuck Jones. Chuck declined the offer believing that the film was better off in Bakshi’s hand. You can say Ralph was lucky on this one.
- Mean Character, Nice Actor: The cantankerous Ida is voiced by the late Terry Haven, described by her surviving family as a real-life Manic Pixie Dream Girl who literally stopped to smell the roses. Bakshi had to actually try to irritate her to help her get into character.
- Write Who You Know: Some parts of Ida were based off Bakshi's own mother, who, apparently, was named Ida, Likewise, some of the photos we of her and family were actual ones of Bakshi's family and his mother.
- Like with Fritz, this film was originally given a X rating despite attempts by its producer to get it a R, but home video releases give it a R rating instead.