- Actor Allusion: Monica Evans and Carole Shelley previously played sisters with a bird-related surname in "The Odd Couple."
- Author Existence Failure: This was the last film that Walt Disney personally greenlit, and the first film that his studio made without him.
- Bilingual Bonus: The signs on the Métro while Edgar do display actual locations in Paris, although rendered in their native French. From the top down, the sign lists the Eiffel Tower, Place Charles de Gaulle (location of the Arc de Triomphe), and Monceau Park.
- Shown Their Work: As Charles had yet to make a name for himself at the time of the film's setting (as well as becoming President), the location still uses its original name as Place de l'Étoile.
- The Danza: Contrary to popular belief, Scat Cat was not originally intended to be voiced by Scatman Crothers, but by Louis Armstrong. It was, in fact, a coincidence when Armstrong turned the role down and it ended up going to Crothers, who just so happened to have a similar nickname.
- Follow the Leader: Basically Disney's version of Gay Purr-ee.
- No Export for You: Due to the popularity of Marie back in Japan, the film resulted in a spin-off manga titled "Miriya & Marie" back in 2012. Similar to Stitch!, it starred Marie and a character exclusive to that manga◊. The manga was exclusive to Japan and Brazil for a couple years until Disney translated the manga into English and released it in the United States and Canada in June 2018 under the "Disney Manga" brand.
- Prop Recycling: Many of the vehicles in the film are actually recycled from 101 Dalmatians, especially the Baduns' truck and the moving van. The vehicles in that film were white models with outlines drawn on the edges, filmed with a stop-motion camera and then photocopied onto cels. Because of time and money constraints, rather than give build new models for the milk truck and the baggage van, Disney simply reused them for these roles in this film, respectively.
- What Could Have Been:
- The Aristocats was originally developed as a two-part live-action episode of Walt Disney's Wonderful World of Color. It was later decided that the story would work better as an animated feature. You may have noticed that the opening credits say the film is, "based on a story by Tom McGowan and Tom Rowe." McGowan and Rowe were, in fact, the screenwriters of this never-filmed Wonderful World of Color version.
- Scat Cat was originally written with Louis Armstrong in mind, with his original name being Satchmo Cat. Unfortunately, illness kept Louie from being able to play the intended character who was then reworked and recast with Scatman Crothers. "Everybody Wants to Be a Cat" replaced the song the Sherman Brothers wrote for Armstrong, "Le Jazz Hot". Armstrong died seven months after the movie's release.
- There was a deleted character named Elvira who was Madame Bonfamille's maid. She would have formed a Big Bad Duumvirate with Edgar after singing a Villain Love Song with him called "Court Me Slowly."
- Early on in production O'Malley was going to have stripes ◊ but Wolfgang Reitherman having learned from working with Shere Khan from there previous film decided stripes to be too expensive to animate and was so O'Malley was left a straight-up orange tabby.
- There were plans for an The Aristocats II, supposed to be a direct-to-video sequel. While the first film had the kittens' nemesis as a misguided butler intent on stealing their fortune, the sequel created a similar dynamic by pitting them against a jewel thief on the open seas aboard a luxury cruise ship. There was also a young kitty love interest for Marie who became the focal character of the film. The ship would travel from places like France, Scotland, England, Spain, etc, thus creating a creating a new atmosphere of different places in the early 1900s. It was scheduled to be released in 2007, but the production was canceled in early 2006 after Disney acquired Pixar and John Lasseter pulled the plug on all the direct-to-DVD sequels that had not yet entered production. Tara Strong was also going to voice Marie for the sequel. In animatics for the sequel, Duchess was also going to be voiced by Russi Taylor.
- There were plans for an Aristocats: The Animated Series way back in 2003. Marie and her brothers, Berlioz and Toulouse, would be turned into teenagers◊. And it would've given Marie (who was supposed to be the main character of this new "Aristocats" show) someone new to bounce off of. They invented this teenaged cat similar to O'Malley the alley cat, called Delancey, who could dance like a combination of Justin Timberlake and Usher. And then to round out the cast "the Street Cats" were created. The basic idea here was to reinvent The Aristocats so that this franchise would then appeal to your typical Disney Channel/Toon Disney watcher. But when Disney bought Pixar in 2006, it was cancelled along with the planned sequel, the Aristocats II film.
- The original character designs for Marie, Toulouse and Berlioz◊ looked very different compared to their final designs. Toulouse originally looked more like a tiger cub, Marie also used to look chubby complete with dimples, and Berlioz's original design was sweeter. The kittens also used to look fluffy, with a lot of fur.
- The original character design for Roquefort had him looking very similar to the mice from Cinderella and Ben and Me.
- According to the book Mouse Under Glass, Boris Karloff was the first choice to play Edgar the Butler.
- At one point during the film's production, Toulouse was named "Dopey" which is seen in this concept art for the kittens.◊
Trivia / The Aristocats