I don't know how much has changed since I was doing it, but in the past there was a noticeable difference in dynamic range between digital sensors and film. Th

I don't know how much has changed since I was doing it, but in the past there was a noticeable difference in dynamic range between digital sensors and film. This was less of an issue for stills since you compose each shot, but with film, especially if you are shooting cinema verité style, you have to especially careful in uncontrolled environments of shadows and light sources to make sure you don't lose info. I'll add that I think that convenience and workflow is the #1 reason for the change. The cost of film and processing in all but small independent productions is a minuscule part of the budget.