Spotted this offer on the BlahDVD website - you can get 2 Sony DVD movie titles for a tenner including delivery. There seems to be quite a wide range to choose from, with some very good titles included. I'll list a few select choices below.
As always, this is an offer from the website itself, so have a quick price compare before you purchase to make sure you can't get it cheaper at another store - as not everything may be a hot deal.
Few ideas: Dr Strangelove, White Chicks, Stand By Me, Spider-Man 2, The Producers, Zathura, Monty Python's Life Of Brian, Fun With Dick And Jane, Gothika, Black Hawk Down, Layer Cake.