Can't really add much - the film is fantastic. Forget the plot, you want the fight scenes, where Bruce avenges his sister, where he beats Han, the Numchuck scene (finally restored after nearly 30 years, because some idiot cracked his own skull trying to copy Bruce) , the subtle humour (the snake, the "fighting without fighting bit....), I just love the film.
There have been some "racism" comments over the years regarding Jim Kelly's early demise (the black fighter with spectacular afro hair); in defence of the film I always thought the only reason Han beat him was because he got distracted by a faceful of Dove and took a stone hand in the face. Pure bad luck.
But he's a far better fighter than John Saxon, and it would have been nice if he'd stuck around in the movie for longer.
The ending is also a little different to the cinema release: at the beginning of the film there is a conversation between Bruce and a monk, regarding seeing things clearly and images - spiritual stuff. That was cut from some versions for some reason.
Anyway, Bruce becomes thoughtful for a few seconds, then smashes some mirrors. Now, the voice of his master is played over his moment of thought, and gives him the idea of breaking the mirrors.
And a scene makes sense!
All martial arts fans should own this.