Trivia: The banker who turns down Jacob's first request for a loan is named Mr. Bingley, an obvious homage to one of the main characters in Jane Austen's Pride and Prejudice. J. K. Rowling has stated numerous times in interviews that Austen is her favorite author, and this is not the first time she has alluded to her works with a character name; Argus Filch's cat, Mrs. Norris, from the Harry Potter books and movies shares her name with the busybody character from Mansfield Park.
Trivia: The film was originally written to be an introspective, existential dramedy geared towards adults about a troubled man who is turned into a cat. As originally planned, the cat also wouldn't speak/the audience wouldn't hear his thoughts. However, after a change in leadership at the studio, the film was rewritten into a more generic family movie.