and -- >> charlie: how much did you go in search of maria marie cas when you accepted this beyond the text. >> lots and lots because it's the first time i played a famous person, a real famous person you can prove. there's recordings and there's films and endless books. >> charlie: and the master class. >> and the master class which was in the same way gypsy creamed the image, gypsy rose lee committed callas, whether it's callas or not we're saying your not doing a documentary. that is taking to character and explode it into a bigger idea. but i read lots and lots of biographies, i looked at lots of pictures. i listened to a lot of music, i listened to the master classes. i stopped doing that because it's not an impression. once i found what i could take away in terms of what i could offer, i keep that but i don't pretend to be to be -- but yet it's a real person. so yes i was obliged to study her. i can't betray her in terms of that. i still do. i got a -- i think read about 11biographies. >> charlie: she was defined by three things. her mother, two her music, three the -- >> that's