Today on Amazon you can get Batman: Dark Knight on DVD (Full-Screen Single-Disc Edition) for only $2.83! (Reg. $14.98)
Plus, remember that with Amazon Prime your order will ship free. Or, if your order total is $25 or more, it will ship free too! You can get Amazon Prime if you sign for Amazon Mom, or by signing up for the Amazon Student Program.
(Thanks Coupon Connections)