I know this has been £12.99 before, but the previous deal did expire, so I think the price is fluctuating somewhat. Get it while you can...
This 2D blu-ray version comes with an exclusive sleeve and 90 minute documentary.
£12.99 for existing customers; £11.69 for new customers using code SETENA12. Nectar points also available.
Hope this helps others like myself who may have missed the earlier deals.