Jeff
I think this topic goes right back to Cinematography 101. Citizen Kane and the likes, a sequence where the scene depicts a picture. What is video but a bunch of moving pictures at 24/25/30 fps? There is no separation, just a different style of shooting. I mean the simple issue of video allowing the subject to go off frame to complete a shot. With stills, once the subject is slightly obscured...it's a bad shot, and once it's fully out of frame, it's a dud whereas in motion pictures, it's almost essential.
As for Reverie, Vince was trying to show a showpiece for the 5D2. From what I see of the edit, I think he had a script that was definitely a lot fuller than the final edit. I think he had to throw out a lot of shots because of the CMOS skew/wobble (even with the gyro stabilizer, handheld is pretty hard). The final edit sort of skips beats because I think the motion shots he wanted didn't come out right. I think Canon would've dropped their 800mm on his head if he showed a bad product. But it also shows the ability of the 5D2 with the crushed blacks and clipped highlights giving off the look he wanted, and thus the limitation of the Digic IV processor.