I might have the “good rear projection film” as you said.
Actually we have two quality level film material for rear projection film.
#1 Economic film, 1.524m width, max 30m per roll
Check this link: http://www.rear-projection-film.com/black-premium.html
#2 Classic Film, 1.22m width, max 10m per roll
Check this link: http://www.rear-projection-film.com/black-pro.html
The above black film all made by PET material, self-adhesive type. Black film high contrast while we also provide wide viewing films and clear holographic films.
The films price is cost effective, we could offer full roll and cut size, just let me know if you still need it in future.