Interesting bit from wikipedia..
"In December 2011, Andrew Lloyd Webber told the Daily Mail that he was considering filming a stage production of [SUNSET] for cinema and DVD release featuring Glenn Close as Norma Desmond, but noted that the inherent costs in forming the production might hinder the project's viability.
In an interview with Elaine Paige during her BBC Radio 2 show Elaine Paige on Sunday on 6 October 2013, Lloyd Webber was asked "What's happening to the film?", and he replied:
"I would love a film to be made of Sunset, of course, but unfortunately the rights are owned by Paramount who own the original movie and, so far, talks with them have never led to anything. And it's sad for me because I think in many ways Sunset is, I think, the most complete musical I have written, I mean in the sense that the book and the music and everything come together I think in a way that perhaps even some of the others, they don't. Anyway that's my sadness at the moment and maybe, one day, the whole thing will get brokered. I'm doing something else with Paramount because after I've done this I'm producing School of Rock on stage, and that's a Paramount picture, so maybe if they like what I do with that they'll let me do Sunset.[59]"
"Movies will make you famous; television will make you rich; but theatre will make you good." - Terrence Mann.