Actually saw this on Hot UK Deals (thanks Einzel) but seemed too good not to share here as well:
http://www.amazon.co.uk/gp/offer-listing/B006MGB31Q/
Only downside is the slightly longer delivery time as far as I can tell but for four films you can't really go wrong
http://www.amazon.co.uk/gp/offer-listing/B006MGB31Q/
Only downside is the slightly longer delivery time as far as I can tell but for four films you can't really go wrong