John Costik directed our attention to this interview with TPM cinematogrpher David Tattersall over at Kodak.com.

From the interview:

Tattersall says that Lucas totally pre-visualized principal photography.

"He was very organized and prepared," he says. "Every frame was storyboarded. He wanted a traditional, classical style of shooting - the five Cs (camera angle, continuity, cutting, close-ups and composition). There was no radical camerawork or lighting, and nothing to draw attention to the photography. He was particular about wanting good coverage that he could play with in editing."

"We never shoot from the hip," he says. "The art department had visual materials we could reference, so I knew what was going to be in the background. It was very organized with lots of up front preparation."

"I think we must have set the record for bluescreen shots," says Tattersall. "Most of the sets had bluescreen elements, even the larger sets, some stretching more than 300 feet were top and tailed with blue screens, enabling ILM to digitally extend the scale."