mrbenja0618 said:

My solution is: They hear the dragon; then look in the direction of the noise, and see nothing... They freak out and run. It's going with the idea that it's the things you don't see that scare you the most.

George Lucas said:

This solution doesnt affect the visuals and i have to pay the animators to do something.It doesn't create any tension and depth that required for the upcoming 3d release. Thats why a new CG dragon will be added created by the high count of Ben's midichlorians.