On the audio commentary of Volume II, Genndy Tartakovsky admits that every time a scene features shaky camera movement (such Grievous walking against the wind), it is because the finished scene was not quite right and there was no time left to fix it.
WILHELM SCREAM: by trooper dispatched by Grievous' Magnaguards.
Anakin's '2D' vision on the cave wall was completely animated using Maya (a 3D software tool).