Wedding Cameras On Sale

Is the expiration date on film a "sell by" date or a true expiration date? I'm looking to buy them for an 08/01 wedding. How true are they with their dates?

I too chose Diamond White, and I LOVE it. Its perfect for me since white looks a little stark on me, but I have olive-tone skin and ivory brings out the yellow. I also thought it would be hard to match, but wasnt at all -its also alot more forgiving to needing EXACT match. I also found pearly white leather shoes to match, which I love!!

What color tux shirts are going with?