Just been to Rubery's large Morrisons in South Birmingham and they have quite a few Blu-Rays at an excellent price, e.g.
Saw III £6.99
War, Good Luck Chuck, The Condemned, The Eye £8.99
Million Dollar Baby*, Rush Hour 3* £10.99
3:10 to Yuma, Reservoir Dogs, Forbidden Kingdom £11.99
Excellent prices, especially for in-store. See my post below - items marked with asterisk can be bought cheaper on-line.