If you haven't seen Enter the Dragon you have no business with martial arts cinema.
It's basically Bruce kicking, punching and otherwise beating near everyone's ass in various ways for revenge, all while being super elegant and conveying a part of his martial arts philosphy both in words and actions. He also has some pretty badass lines and a couple very funny moments (the snake scene for example). John Saxon and Jim Kelly are also very enjoyable to watch. The bad guy Han however is unfortunately too mediocre but at least Bolo Yeung and Robert Wall do a good job as Bolo and O'hara respectively. If Han was at least as great as Bolo, this film would have been like 3 times better from how good it already is. Doesn't matter much though, overall it's simply awesome and is "the" definite Bruce Lee film. Everytime it makes me wish he hadn't died so early.