Wal Mart has alot of DVD's with $5 gift cards attached to them. They are $19.95, so you can price match with let say Best Buy to get the price down to $14.95. I got The Dark Knight because I had a $3 off coupon from Papa Johns from buying pizza a week ago. So I look at this like I got the movie for $6.95!
When price matching make sure you take the entire ad to the cashier!