Disney has a coupon for $10 off this Tinkerbell DVD/Blu-ray combo set. Go tho this link to find the coupon. I have see this movie and think it's cute and teaches lots of morals especially to girls.
I would try using it at Wal-mart, K-mart OR Toys R'Us. You might be able to call the store ahead of time or look on line to see what prices they offer on this product. I got my snow white one at Albertsons last time because they offered other free product when you bought the movie plus I could use the coupon so it worked out fine. So look around. Mine says it expires on Oct. 31, 2009.