Maybe of interest?
Amazon UK
Two Blu-ray 3D for £20
From Monday, 29 June, 2015, buy any two Blu-ray 3D from the selection on this page for just £20 (the “Offer”). Each customer can claim an unlimited number of Offers (but only one Offer per order). The Offer ends at 23:59 BST on Sunday, 27 September, 2015.
http://www.amazon.co.uk/b/ref=amb_li...d_i=B00HHZ9JLM