. >> if you were in communication with tweed roosevelt and river of doubt. >> oh, yes, tweed roosevelt is the great, great, great grandchildren of tr, and he led the expedition a few years ago, documented, experienced it firsthand. the nightmares that his great, great grandfather experienced, and through this, made us understand that the trip was as hellish as it seems to be in tr's own personal account. that river, by the way, is the river longer than the ryan, and tr took great pride of having put it on the map. thank you, ladies and gentlemen. [applause] >> that event part of the 2011 national book festival here in washington, d.c.. to find out more, visit lo c.gov/bookfest. >> not to discuss the films that i'm making while i'm making them for all the reasons. >> are you currently working on one? >> maybe. i don't talk about it. they just appear when they appear, and i just -- it's not in the best interest of the film to give a heads up. with sickoh, before i made it, i made the mistake of saying i was making a film about the health care industry, and the health care industry just w