At this point almost no film is being used. The ISS and Shuttle crews are using digital cameras 99.9% of the time. STS122 which landed last week is a crew of photo buffs and they returned with no film. (Some film is still manifested for each flight but it's less and less each time with none being used.) Having said that, the previous crew returned with a few rolls but they were mostly experimental, using a stereo camera they had on board and also testing an 18mm lens.
There's still a veritable ton of earth imagery on film that hasn't been scanned, not to mention the thousands of digital earth images we process from the space station.