This was a film from yer one who made that Red Road film comes this tale of skanky council estate folk. The central performance is exceptional, especially considering that the actor had never been in anything before and was cast after a casting scout saw her arguing with her boyfriend in a train station.
It's hard to say too much about this without making it sound grim and depressing, which it ultimately is not (for all that it has a few nooooo-my-eyes scenes), so I will leave it at that and recommend it to everyone. But there are lots of great performances, from Katie Jarvis in the main role, someone else as her skanky mother, and Michael Fassbender as her mother's new boyfriend, to all the incidental actors. There is a lot of really lame music in the film, but this is a comment on how being working class sucks.