This prologue scene in Treasure Planet where Jim while solar surfing, cuts the engine and plummets always floors me because of how accurately it treats the physics of a free fall.
The sheer sense of weight, speed, and genuine air resistance they managed to capture. The violent camera shake perfectly mimicking how you'd experience it in a real dive.
This applies in 3D too if you're ever doing Stepped Animation, so make sure you're either doing A, or parenting the Root/whatever other controls you need to the Camera to prevent stuttering.