Just picked up RocknRolla on DVD from Wyvern Sainsburys in Derby for £3.99. It was stickered up at £3.99 but went through the tills at £6.99, so had to go to customer services to claim back the £3, so maybe a misprice, but there were 4 or 5 on the shelves all at £3.99.
I'll post up a pic/receipt if people need proof!!
Bargain for me anyway!!