. >> kroft: ann garefino and scott rudin know them as well as anyone, and have been with them since theino is the executive producer of "south park," and rudin is the entertainment mogul who launched their film careers. both produced the broadway musical. >> scott rudin: sometimes, i've seen people try and triangulate one against the other. but, you know, you see people try to get between them, they shut it down so fast. they have each other's backs in the absolute best possible way. and it doesn't mean they don't disagree, because they frequently disagree, but they are genuinely a partnership. >> kroft: garefino thinks that matt stone is the more ruthless of the two when it comes to satire, and that trey is softer with a sweet sense of humor that provides the charm. we wanted to know what they thought of that analysis. >> stone: that anne's pretty smart. >> parker: anne's a bitch. ( laughter ) >> stone: see? see? that was the opposite, right? >> parker: we're just proving the opposite. >> stone: boy, that trey's ruthless. >> parker: ( bleep ) anne, she's fired. >> ♪ i believe that the

so i was writing books, kevin was one of the first to read it and now scott rudin who is like a god in this industry. so i do know when i sit down that, you you know, this could a movie, and i'm not picturing justin timberlake running around nasa, but i am picturing -- not that i don't think he'd be great, which he would. [laughter] i'm picturing a very visual setting. i'm picturing it this that way because i think there's a real synergy now. books become movies more and more frequently, i feel. at least in that respect this one we sold to the same people who are making "the social network," same producers and dana and sorkin -- not sorkin, deluca. so, yeah, i do think that way. but, you know what? movies are much more fun. so for me when i sit down in my cold, darkroom in boston for three months of solid loneliness, you have to be picturing a big screen in your head. >> all right. would you rather be reading a book or watching a movie? >> reading a book. you know, i'm sad in a way that i like the kindle. [laughter] you know? and that it is a great device. >> right. >> because books ar