Where does this notion that film has more DR than digital sensors come from? Ken Rockwell who only shoots jpeg?
Checkout the Zacuto clips on youtube of them comparing the video output of the 1D4/5D2/7D with that of Kodak film. The kodak film has 14.2 & 14.5 stops of DR whereas the 5D has 11.2 but usable is probably closer to 10. Episode 1 of the Great Shootout of 2011 covers DR.
Now I don't know if all film has the same DR as the Kodak film used in that "shootout" but it is a place to start.
that kodak is motion picture film...not photography film
but still, look at the DR of it.
Right. My understanding (albeit limited and prone to being wrong!) is that motion picture film is designed differently and optimized for things like DR rather than resolution which is far less important when there's motion... for example in digital video 1080p (2 megapixel) is high-res and 4k (~9 megapixel) is super-high-res. The transfer functions used in the movie-land are also different. Consider also that the DSLR video is an h.264 output.