Honestly, I can't say if this is a practical method in this day and age, but I'm glad you guys are sharing your thoughts.

I do wonder how "low you can go", in terms of minimum quantities of emulsion. You could use up the remainder with one of the tried and true coating methods though.

Imagine though if you had a continuous web of film that you could run over something like this, and then afterwards you could introduce a twist into the film to bring it right side up.