Amazon have 2 copies of the BFI-released 'The Innocents' - classic horror film with Deborah Kerr, based on M.R. James' The Turn of the Screw). They are classed as 'used' but apparently have just got their shrink wrap missing. They are sold by 'warehouse deals uk' , but the order is fulfilled by Amazon so free postage!
Amazon.co.uk: Used and New: The Innocents (Blu-ray) [1961]
£10.13! Cheapest I've ever seen it on Blu...I've just ordered myself one of the copies. The picture is meant to be absolutely stunning!
DVD Outsider: The Innocents Blu-ray review