All Blender movies can be downloaded for this reason: https://cloud.blender.org/open-projects https://cloud.blender.org/open-projects Last month they discovere

All Blender movies can be downloaded for this reason: https://cloud.blender.org/open-projects https://cloud.blender.org/open-projects Last month they discovered a bug in Blender that was the cause of very slow hair rendering. The fix dropped render times for some scenes from 4 minutes to 40 seconds. So it can indeed be useful to check if things can be improved for old movies. But I am not sure realtime is an option right now. Most movies also use post processing per frame wich also takes some time.