CP3S said:

Interestingly, I went to see The Hobbit is 24fps yesterday, it felt painfully blurry and I could swear all the tracking shots and other quick motion shots looked like they were skipping. I wonder if I would have noticed that if I hadn't first seen it in 48fps?

Well... a film shot in 24fps would have the appropriate amount of motion blur for 24fps display. A film shot in 48fps and downconverted to 24fps would need to have motion blur artificially added to have the appropriate amount of motion blur for 24fps display. It's not like they can delete every other frame and call it a night.

I am quite curious about this process. Back when I did 3D animation, the motion blur algorithms were new and didn't quite have the right look. But heaven forbid you rendered without motion blur. Even 30fps looked quite jumpy without it. Also- Looney Tunes and other old school animation was drawn at 12fps, with every frame doubled to get to 24. So they had to hand draw a lot of motion blur in, and they were pioneers in the art.