first, you should point out that Hell and Back Again is nominated for an Oscar (Best Documentary - Feature)
and then...
in the last couple of years, it's been used extensively in pruductions ranging from very low budget to huge blockbusters - you've seen shots from the 5D2 in Iron Man 2, Black Swan, Drive, Red Tails, and many more
http://www.google.com/#sclient=psy-ab&hl=en&source=hp&q=canon+5d+site:imdb.com%2Ftitle&pbx=1&oq=canon+5d+site:imdb.com%2Ftitle&aq=f&aqi=&aql=&gs_sm=e&gs_upl=36861l37523l1l38088l6l6l0l0l0l0l84l490l6l6l0&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=1dbd3f8015f147e0&biw=1280&bih=600
in the next few weeks, Act of Valor will hit the screens; it's the big budget feature that has used this little cam most extensively so far (and, now that the C300 and other big sensor videocameras are common, it may be the only one ever to use it so much)
http://www.youtube.com/watch?v=1dS7XkRcD-c
also, today, reading this blog post on a filmmakers site that seems related to Canon:
http://www.ifp.org/resources/why-filmmakers-dont-need-money/
I was not-really-surprised by the poll, which, right now, stands like this:
Which Camera do you plan for your next shoot?
5D2 - 29%
7D - 28%
Rebel - 24%
60D - 16%
XH-A1s - 5%
GL2 - 3%
XF-300 - 3%
XA10 - 1%
XF-100 - 0%