Here we have, the Official Making Of of the CATS film from 1997, featuring interiews with the creative team and the cast, aswell as some really interesting information.

Also, we have T. S. Eliot's poem Pollicle Dogs and Jellicle Cats recorded as a song by Andrew Lloyd Webber himself and three versions of Mungojerrie and Rumpelteazer, which are very different from the song as we know it today - one by Gemma Raven, one from the Original London Cast and one from the Original Broadway Cast. There is also a video of Petula Clark's song I Could Have Given You More, which would later become Gus: the Theatre Cat.