Dakota fanning *starrings*?

ok so earlier today, my gma and i was watching oprah and oprah was inter viewing some of the the new moon cast, and now, ever since dakota started acting, she was always my gma's most all time FAV actress so she was watching it and said "holy macroll! Dakotaa is so grown up now!" so yathat'ss my story. lol and now my Q, is.... how old is dakota fanning now? and when did she start acting and when did she film is sam i am?. plz answer the Q. u no if can answer all 3 of them that would be super! thx ur the best!!