The Fighter

I rented it last week. I was very impressed.
Christian Bale plays a former boxer who is now seriously addicted to crystal meth. Mark Wahlberg plays his brother...the fighter in the title.
Throughout the first 2/3 of the movie there is a film crew from HBO filiming Bale who tells everyone that they are there to film his comeback to professional boxing. They aren't, they're there to film a documentary on crystal meth addiction with him as the subject.
Wahlberg is the fighter whose family including Bale is "managing" the career of. They are also just setting him up for a no win career and arrange very dubious fights.
Eventually Wahlberg meets a girl who is important enough to him for him to listen to her and accept the truth about his career and family.
Bale pulls a sting that only someone that wasted on meth could think of as a good idea. It results with him in prison and out of Wahlbergs face long enough for sense to prevail and a career to start. The HBO documentary airs and Bale realises what a complete wanker he has been, dries out and gets a life.
There on in it's a bit predictable. But I still would give it 4 out of 5.