If the coating technology and plant is modern and paid for I don't see why making and selling film alone couldn't be a nice little revenue stream. Product selection might go down but Tri-X is Tri-X, how much further R&D needs to go into it? There are probably a lot of money losers in Kodak's operations being paid for by the money makers. I'm thinking (hoping) film is a money maker, (maybe only because then I can keep buying the film I most like to use).
Besides, Kodak's film technology might be the only asset they have not being targeted by the patent jackels. Look at Apple. How much of their asset value is under patent attack? How much is merely public sentiment about its coolness factor? I certainly don't know, and in the case of product sentiment I doubt anyone really does.