Old film? I have a 100 ft roll of Tri-X that I bought from a camera show about 10 years ago. I was only one dollar. Why? Its expiration date was 1958. Its current speed is about 25 but it does work and the fog level is manageable.
Also, I have some of a 100 ft roll of Vericolor that I bought about 1980. Since then, room temp but if I expose at about 25 it, again, works. Dense negs but they do print well. Old film does not die if you are not spoiled with clearest base film. - David Lyga