How come I've never heard of Julia Childs?

[youtube=http://www.youtube.com/watch?v=HPnfRwABGJE&color1=0xb1b1b1&color2=0xcfcfcf&hl=en&feature=player_embedded&fs=1]In USA or UK?Apparantly she changed America.......Looking forward to film though - any film about food is good!