Comment by kstenerud

Vaguely related (in terms of reality doesn't work that way), but in film there's a tendency to show close-up leg movement wrong. Example: https://youtu.be/k3TYpGyH4JU?t=51

When a biped walks, there's a fast movement period as the leg swings forward, and then a slow period (from the camera POV) where the leg rocks slowly while the body swings around and the other leg to plant it, followed by a faster pickup to swing the leg again.

But in movies they always show the single leg complete its entire motion at a single (unrealistic) speed, usually with the leg just rocking along the ground like it was made of wood instead of actually planting the foot.