It seems that some people in this thread are looking at the wrong camera. This camera is designed mainly for still photography, NOT video.
Video is just a small "side bonus" on the 5D3, so don't be so surprised if Canon doesn't give you the features you want. They are saving all the good stuff for the 1DC-line. That is where you should be looking.
For video when compared to the D800, it lacks several major / almost crucial features.
Same as with the still photography features.
Alas, it is a shame that most of the missing features can't be added by firmware. Like more resolution, more DR, and spot metering linked to selected AF point. (Just to name a few).