Available online?

Hi. :) I want to see Sex Lives of the Potato Men because it's got Mark Gatiss in it. I'm aware that, according to what I've heard of this movie, I might end up throwing rocks, flatmates, you name it at the screen just to stop the pain, but I wanna see it anyway.
As I'm sure you understand, I don't want to spend over minus 50 quid on a movie of this reputation, so I was wondering if it's available to watch online. I've searched, but can't find it anywhere.

Can anyone help me out? :D