Cult Classic: The film has firmly cemented itself as such over the years, especially among those to have grown up in The '90s.
Executive Meddling: Roald Dahl's widow liked the character designs by Lane Smith so much, she asked him to create new illustrations for a new printing of Dahl's book. When Disney became aware of this they told Smith to create new character designs for the book, because the company owned his film designs. In Disney's defense, though the way the bugs look in the film are a little different from how they're described in the original book (especially the Centipede), so Smith likely would have had to re-design the characters anyway to accommodate Dahl's original narrative.
Playing Against Type: Mike Starr, who is known for playing foul-mouthed tough guys, has a cameo in the end as the caring beat cop who helps James when he arrives in New York.
What Could Have Been: Aside from the peach being a cherry in the original manuscript of the book, there was a deleted scene supposed to play after the credits in the film that revealed what happened to Spiker and Sponge: still wrapped up in their silk cocoon, they were put on display in the Central Park Zoo labeled as unknown species, and are shown bickering and demanding a separate cage.
If this movie didn't flop Henry Selick and his company Skellington Productions would have made Toots and the Upside Down House, A film based on the book by Carol Hughes of a tale of a young girl who creates a fantasy world of goblins, fairies, sprites, and an evil Jack Frost. But due to the flop this movie was scraped.