Don't Drop my head
The combination of bones, ligaments, and muscles, all modeled per their physics and directed by an AI that I already have, would create a virtual actor that could do anything that was physically possible , and with a few tweaks of the physics control, things that wouldn't. I think that I prefer the movie that is based on the physics of this universe and not something made up. I would expect my characters to respect gravity, time, entropy, momentum, and the speed of light.
The software would respect the physics and I could created multiple parts to a complex model with a link structure that would be virtual tendons. I think DaVinci would have loved blender physics.