Every year we go through the same song and dance a few times with blockbuster music biopics and every year it's more and more tired. Any old idiot can summarize Wikipedia and play the needle drops at the right time.
I'm Not There actually takes the bold steps required to make a biopic interesting and ends up dissecting exactly what "Bob Dylan" means, even though I don't think we hear his name spoken a single time. He is music; he…