I am looking for a demo/test of footage shot on film that shows different gels being appied to the light to see the changes/look of the light for different gels.
know where I could find one? If I can't find one, I'm going to shoot one myself but yeah... know of any?
This will be really hard to come by. Different film emulsions react to color in varying ways and are not consistent across stocks (even same brand/model of stocks at different speeds show variations.) You would be best shooting your own tests with the stock and lab you intend to use and passing judgment that way.
One solution might be to shoot tests with film stock recanned into 35mm still cartridges. RGB labs in hollywood used to do that, but no more. I think Seattle Film Works still does. I loved shooting vacation pics on 5279 and 5245... My stupid digital camera just doesn't compare...