Is it worth mentioning that the three lead actors are British? Probably not because most people won't notice, they're pretty good actors. Charlie Hunnam (King Arthur) is older brother Stanley who "looks after" younger brother Jack O'Connell (Unbroken) playing Walter who is a skilled fighter. The phrase "if not for bad luck they'd have no luck at all" applies directly to these guys. Their dire situation expectedly leads to spiraling poorer choices which indebt them to a loan-shark who makes them an offer they can't refuse. Thus begins their road trip to a big fight with a big payday... The catch? They have to take Sky (Jessica Barden of Hanna) along with them.
Viewers expecting another Warrior or The fighter will be disappointed... This is more a drama. There is a bit of action thrown in to keep fight fans happy, but the film is about the complexities of family relationships, the struggle to realize one's dreams, the hopelessness of failure and redemption of the spirit.
The actors suck you into their world and drag you along the seedy and grimy sidewalks of their life. The camera work is very clean, the scenery spans from gritty to beautiful, and the score is always appropriate, but this is a character driven film, and done well.