For info see
http://home.freeuk.com/m.gavin/2005cf.htm (image of supernova spectra by an ameteur) CCDs will out perform film no matter what any one says!
Yeah, I'd expect monochrome CCDs to have rather better sensitivity and a much flatter response than film. Colour CCDs on the other hand, would suffer badly from having colour filter masks in much the same way as colour film.