Yep, film is very archival. The one caveat is that it's archival if you shoot "real" B&W film. I was rummaging through a big box of photos and negs from 12 years ago and had a very unpleasant surprise. Most of what I was shooting back then was either color film or that C41 B&W stuff. The negs had faded so much I had to throw them away. Ditto for the cheap prints Walgreens had made for me. Now I shoot nothing but Tri-X and print my work on fiber paper, so no more of that nonsense.