I just got the following email this afternoon:
granted, it was the online portion of BB and not the BM, but Im still surprised. I even saw the credit they gave me when I looged into my Discover account. Sweet, this means I got the movie for like $5 (15.99-10 digital coupon for future purchases).

Dear Best Buy Customer,
This is Cassi from Best Buy Enterprise Customer Care,
Thank you for your recent purchase of the Van Wilder movie. In order to
honor our Pre-Order Price Guarantee policy, a credit will be applied to your
credit card for the difference between the original price of $19.99 and our
new lower price of $15.99. Your lending institution will be receiving
notice of this credit. Please note, in some cases it may take up to two
billing cycles for the credit to be applied to your billing statement. If
you have questions regarding the specific timeframe in which your credit
will be applied, please contact your lending institution.
We look forward to your next visit to one of our stores or to
www.bestbuy.com. Please do not hesitate to contact us with additional
questions or concerns.
Best wishes from Best Buy,
Cassi and the Customer Care Team
granted, it was the online portion of BB and not the BM, but Im still surprised. I even saw the credit they gave me when I looged into my Discover account. Sweet, this means I got the movie for like $5 (15.99-10 digital coupon for future purchases).