Kodak 35mm B&W film used to come in a foil wrapper. Color films came in a screw top metal can.
I imagine one reason for the can was to protect the film when it was mailed in to Kodak for processing. B&W was usually done locally. Kodak didn't sell B&W processing mailers though they did have a B&W processing service that was used by retail stores.
FWIW: Agfa used to package their 120 in screw top aluminum cans.