I bought this a while ago and my friend ended up borrowing it near enough straight away and said it was a great film but he never gave it back (remind me to tell him to find it) but i've spoken to a lot of people about it and they've all said it's an amazing film.
It's now available for £1.85 from Softuk and if you go through Quidco, you'll also receive free delivery (which is normally £1.49) and you'll also receive 4% cashback as well or you could use the free delivery voucher if you don't have a Quidco account.
I think I bought this for around a tenner but it's great to see quality films under a few pounds, as they're normally a pile of rubbish.
Hope that helps. :)