You may want to use recyclable bags of desiccant inside the moisture-tight wrapping when you first wrap the film, and allow enough time to thoroughly dry the film inside BEFORE you either freeze it or refrigerate it. Similarly, when you remove the wrapped film from refrigeration, allow plenty of time (at least several hours) for the wrapping and film to come to room temperature before unwrapping. Without desiccant you run a double-risk of ice or moisture on the film both when freezing and thawing. I've tried freezing, but I found a 50-deg cool location the best, mostly from a convenience point-of-view, and no problems with moderately out-of-date film. Very long-term storage of film and paper might demand freezing. Military-surplus stores sometimes have inexpensive recyclable silica-type desiccant bags.