I was in Head Entertainment (Leeds) at lunch time today in Leeds and they were starting to price Various Blu-ray's up at £6.99 and had also reduced some down to £7.99. I got Natural Born Killers for £6.99 (£9.95) and bought Die Hard 2 for £7.99 (was £9.95)
The few I saw which had been changed were:
The Brave One
Natural Born Killers
X Men: Last Stand
and lots more that I can't remember at the moment.
Basically they're changing the pricing structure to start from £6.99
I'll pop back tomorrow if I get chance and update this list.
This may be on at the other Head Entertainments
p.s. Thanks to gazzereth26 and Asura for their input