Saw this and thought it's worth posting.
From Friday 27th of may bestbuy will be doing half price blu ray boxsets.
The prices below have been confirmed by best buy staff and prices are correct
They will include the following
Alien anthology £12.49
Xmen quadrilogy £9.99
Iron man 1+2 £12.49
pirates of the caribbean trilogy £14.99
Many others in store according to the flyer.