dwaynes has film for sale still. John Schwind has run out but said that there may be some agfa 200 speed color available in the future
there are two types of bolex lenses that fit that camera--the type that do have a focus helicoid and the type that don't. There is a 5.5mm pizar that has no focus ring since it is very wide just about everyting is in focus wide open anyways. There is a 13mm yvar with aperture only as well. the rest of the d mount lenses should have both focus rings and aperture rings. there are also some other d mount lenses--aftermarket and for other cameras such as bell and howell and revere. The wider angle ones generally have no focus settings and only aperture settings.
the still picture shutter speed can only be used with a cable release and it is 1/17 sec at the 8fps speed and 1/25 second at all other speed settings for the standard c8 with fixed (not variable) shutter.