The motion of the object at :20 to :30 suggests pendulum motion from a suspension mechanism that would be more difficult to achieve in computer animation.
I don't know about that. It's quite easy to create pendulum motion. All you do is move the object's axis to what would be the pendulum's axis and revolve around that. (i.e., the "center of mass" doesn't exist in CG, it can be made to be anywhere you want it to be). And most programs today have automatic keyframeing which adjusts motion based on linear curves, and can easily reproduce a swinging or pendulum effect.

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Theory of Zombie Relativity:
1) Everyone Else is a Zombie relative to You
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