i was working with chris kenneally, the director of the documentary, in post, he was working on the film, and i was looking around, and i just had this moment where i was, film is going away. this is all going to change. this is already changing. that hit me, and i guess because i grew up with film, i wanted to go on an expedition to find out what that meant and what was the impact of digital. where did we come from, where are we going and where are we today. tavis: i've had similar conversations. you're the first person to really dig into a documentary about this, so i'm glad you did, but i've been honored to talk to a lot of folk in this very chair about this issue. james cameron and i had a great conversation about this one night on this program. >> oh, yeah, great. tavis: danny boyle and i had a great conversation about this one night on this program. so i've kind of played around the edges with this, and i can see how digital allows for things that heretofore have not existed. you mentioned "avatar" early in this conversation. so i get that. the flip side of that though is that whil