Zen,
I know I've related my personal experience with freezing film on your past thread but I will quote Ed Pincus' book 'The Filmmakers Guide'.
"The lower the temparature the slower the effects of the aging process on film. Eastman Kodak recommends using raw stock within 6 months of purchase, and for longer periods, storing the film at 0 degrees to 10 degrees F. If you need to ensure a high degree of uniformity in the film, always store raw stock at these lower temperatures. Since relative humidty in a refridgerator or freezer is very high, pack film in a plastic freezer bag to control humidity. After you remove the stock from cold storage, allow it to come to room temperature before breaking the moisture seal. Tis prevents condensation and spotting on the stock. Minimum warm-up times are 1 to 1 1/2 hours for super-8 abd 16mm stocks and 3-5 hours for 35mm."