Bruce Lee is indeed a legend, for a great many reasons. In the context of this movie, I will mainly be focusing upon how he deals with the back injury - but rest assured, we all owe Bruce a great debt for what he brought to the western world, and martial arts as a whole. Anyone who seeks truth has the capacity to be legendary, and that was what Bruce did.  He sought out, and created his own truth.  He added what made him stronger, removed what made him weak. He overcame, he endured, he perfected. There have been many artists, but Bruce Lee was considerably more.  He did what he loved, he pursued what he loved, and he created what he loved. Plus, he punched big blocks of ice ;-)  Good movie!