Well, hello Michael and Dave.
Much water under the bridge.....some of mine a bit muddy

Are you still making films, Michael? Or, in this day and age, Videos.
Have you any links to them?
I'm sorry, but cannot remember you at NFT, a wonderful cinema
which I assume is still there....I left London 40 years ago, now living
in the sticks, splinters and all.
The original films of Red and Black type have been lost
over the nigh 60 years since they were made.
However, I have uploaded onto Utube very poor copies of them
once shot off a 16mm projector in a haphazard way !
I simply love the vintage scratches etc
https://www.youtube.com/watch?v=TT1dZG6GYE4&t=8s
https://www.youtube.com/watch?v=5ERYL03_aaI&t=49
60 years ago I was going to make GREEN type using green typewriter ribbon
but couldn't think of a story using green. Now things have changed and
GREEN has new meaning against RED CO2 !
All the best, both of you. Take care.