Nothing is worth your time on this film. Bad performances, a deeply shocking screenplay (you'll hate the characters, be bored by the "plot" and despise the "dialogue") and its shot in the most unimaginative way well, imaginable.
Tough talk - but THIS is exactly what is wrong with contemporary British cinema. Its so sad that tripe like this is allowed to exist. Career car crash for all concerned is whats needed, as unpleasant and spiteful as that sounds.