"First Blood" is the only "Rambo" film that warrants genuine attention. The Vietnam War was hardly a distant memory when this film was made. Its message of social isolation and alienation from mainstream society, combined with conflict trauma that makes moving on difficult to impossible, no doubt resonates with veterans of that unpopular war. This is a surprisingly sophisticated action film when viewed from this perspective. The fact it's able, with seeming ease, to marry up its thoughtful back story with gritty, intense and well-executed action is really a credit to the writers of the screenplay. Stallone hands in a suitably understated performance as a lost soldier, looking for a form of understanding and acceptance from a world that has moved on without him. A man pushed to his limit, who responds to violence and cruetly, the only way he knows how. In summary, "First Blood" is the only time the "Rambo" franchise shines, but it does shine brightly. A cinema classic that's a must watch for action fans.

Source on TMDB