Just checking back in again for a response. Looks like I'll be OK using the film. I'll process one roll and then evaluate before shooting the other three just to be sure. To address some earlier questions: the box was closed but out of the shrink wrap. All four canisters had the plastic tops popped off but the canisters metal end caps were secure. There are two different colors of plastic with the pan f and that may help account for the matter. Thanks for all the responses.