Was in Asda Bearsden in Glasgow tonight. They had this in a 2 for £20 but also £7 on it's own if you don't see any other blu ray you fancy.
Also had good movies in the 2 for £20. I picked up The Hangover and Terminator Salvation.
Dunno if it'll be store specific but the whole blu ray section was looking like it was just merchandised so check your local out.
First post so cheers!
PS - Dunno if it's online too.