I love Nirvana. Got pretty much all their cd`s and listen to them pretty much non stop. I read the biography Heavier Than Heaven as well.
I will definetly be on the look out for that documentairy you mentioned.
At first they were seen a little as the voice of a generation, but I guess now you can see them as more then that. To this day a lot of people can relate themselves to what they express on the stage.
In that sense Kurt is a rolemodel for me as well. You can think what you will of his choices, but he was a man with struggles who fought hardships his entire life. He was flawed and real. An underestimated musician with underestimated lyrics, even taking into account he himself stated the words didn`t matter that much to him, he still instilled songs with meanings only someone with genuine life experience could.
So in short I love that man. He is charismatic as hell as well!