Need film stock? You can order it directly from Kodak. Just call 1-800-621-3456. If you’re a student, you can get a 30% student discount simply by emailing them a copy of your Student ID: eiamericas@kodak.com Do it five minutes before you call. You’ll need to email them your ID each time you order.
To greatly streamline the ordering process, go online, http://motion.kodak.com/motion/Products/Production/index.htm, and get the catalog #’s for the stock you want to purchase. It will be shipped from either NY or LA, depending on how late in the day you order and/or how quickly you need your film. You can, of course, place orders online as well.
No matter how you order, they will charge you tax but ordering from Kodak insures that your stock will be fresh.
Latent Imager 
Thanks for posting this information for all the film lovers out there! I would also like to add our US Online store as well as our Education Discount store as additional methods of ordering motion picture film from Kodak. Visit them here:
US Customers – http://www.kodak.com/go/shopmotion
US Education Discount – http://www.kodak.com/go/shopmotionedu
Note that students must use this URL and follow the link to the store from that page!