When the Genie changes Abu into a car, the license plate reads "ABU 1"
In the original folk tale, Aladdin is Chinese.
In the first draft of the script, Aladdin had three friends - Babkak, Omar and Kassim - as well as a magic ring, and two genies.
When Jasmine's father plays with the wooden animal toys, there is a Beast toy underneath the stack (from Beauty and the Beast).
During the film, the Genie appears in various guises, including:
Robert De Niro
Tourist with a Goofy hat on
A few of the imitations the Genie did were cut from the film, including George Bush and John Wayne.
The decorations at the top of the columns in the throne scenes are the same designs that were used for Mrs Potts and the teacups in Beauty and the Beast.
The fireworks at the end of the film were reused from The Rescuers.
When Aladdin tells a lie, the plume on his Fez falls to cover his face.
Robin Williams provided the voice for the Genie and was only paid at the lowest legal pay rate, the union scale rate. He agreed to this on the proviso that the Genie didn't take up more than 25% of the space on advertising posters & trailers, and his voice wasn't to be used for merchandising. Disney failed to keep it's promise, and as a result Robin Williams withdrew his support for the film. He didn't do teh Genie's voice in the sequel The Return of Jafar or the Aladdin TV show. Michael Eisner tried to make amends by offering him an original Picasso painting, but he wouldn't accept. When Jeffrey Katzenberg was fired, the new producer that replaced him gave a public apology to Robin, who then agreed to return to Disney and voice the Genie for sequel Aladdin and the King of Thieves.