>> you are very hard on them. >> i'm their father. it's my job. >> what is this? [crying] what is this! >> i'll be nice. once. then i won't. >> i know one thing, this family is our fortress. >> how much harder is that, jim, than straight cgi computer generated imagery and is it this performance capture, is it worth all of the extra time and expense? >> well, that's really the big question. i mean, i can talk for hours about how we do it but we rarely talk about why we do it. one of the big upsides of it is that i take all of my sideas an