Thanks to Magic Lantern, recording RAW videos with the 5D Mk3 has become a reality. This means shooting much sharper images with a freaking 14 bits of dynamic range and much more control in post! Right now, the bottleneck is data transfer but the ML community is really working hard on this. I haven't installed ML on my 5D3 yet but when I see the results people get... I will not resist the temptation very long! Take this video by Mac Gregor for example. If I didn't know, I'd have assumed it was shot with a RED! Kudos to the community!
UPDATE: The video was removed by its owner.