The quality of movement in cinema (film) is formed by these characteristics:
Global shutter with smooth in-out
Projection Speed 1: 1 (not pull down)
Acceptable number of frames (I think 24 is the minimum acceptable. No one creates wine tasting arguments to defend 20fps)
24p and 1/48 expose are standards for projectionists, camera manufacturers and filmmakers to talk each other. If the standard was 30p it would be a little better, but with higher costs for film, development, print, copies ...
In digital, global shutter is possible, and solves movement much better