Not that I know much about this sort of thing, but today I used a high-end/ high-definition Canon digital camera setup that combines still and motion picture photography in one amazing device. A person could actually use it to shoot a real movie. And you can toggle back and forth between still and motion photography. It was amazing. I personally only tried out the still function, but the high capacity memory means you can shoot real motion pictures, and not just a few seconds worth. And it takes sound, as well.
We were borrowing this camera from the client. I shot some b-roll scouting photos, and RM used it as second camera during the actual shoot.
Wow. Wow wow wowie.