Phil Harris later went on to voice Thomas O'Malley from The Aristocats, Little John in Robin Hood, and finally Patou in Don Bluth's Rock-A-Doodle. In the sequel, he is voiced by John Goodman.
What Could Have Been: The Vultures were originally planned to be voiced by The Beatles and sing a rock song, but John Lennon refused on the grounds that he hated the Walt Disney Company. The Beatles-inspired character designs for the Vultures were kept in the finished film, however.
Before that, the film was a closer and much darker adaptation of the book.
According to Amy Mebberson, one of the animators for Jungle Book 2, there were ideas for a third Jungle Book. One idea was about Baloo and Shere Khan getting captured by hunters and sent a Russian circus, Mowgli and Shanti going after them to save Baloo, and Shere Khan possibly getting over his desire to kill Mowgli through the course of the film.
Long before The Jungle Book 2, development for a sequel had already been planned in 1968. It was initially pitched as a record story (entitled More Jungle Book) however it was rejected as an animation out of respect for Walt's dislike of sequels. The record featured original tunes provided by Phil Harris and Louis Prima (who reprised their roles as Baloo and Louie respectively), a snippet of which can be found here.
Trivia from The Jungle Book (1994 live-action movie):
Playing Against Type: We don't think anyone, especially those who grew up with The Princess Bride, could have ever imagined Carey Elwes playing such a despicable character.
Trivia from The Jungle Book: Mowgli's Story (1998 live-action movie):
