Alpha Dog: 7 out of 10.
I was worried about this one because Justin Timberlake almost single handedly ruined Black Snake Moan on his own, but he didn't suck quite as bad in Alpha Dog. Alpha Dog reminded me a great deal of Bully, another film I enjoyed. They'd make a great 1-2 punch.
Like Bully, this film is based on a real-life incident. It's all about Jesse James Hollywood who is currently awaiting trial in California. Here's his America's Most Wanted profile.