a small fast moving object isn't pretty at TV/film framerates.
Off topic, but I never understood that about movies. They should be renamed "jerkies." It looks OK on a small TV screen, but at the size of a cinema screen any full screen fast movement is terrible. Next time you go to a big screen movie, look at rapid movement, especially at the edge of the screen.
Maybe it's because I live in Britain and they convert two different frame rates? But I wouldn't think that applied to movie houses.
Maybe that's why video games are so popular - smooth moving pictures are a technological novelty.
Just thinking aloud. Maybe it's just me.