Spielberg: Artificial Intelligence: A.I. part 4
At the end of Act III, David and his robot big brother Joe have escaped the Flesh Fair and are back in the woods. David declares his goal: to find the Blue Fairy of Pinocchio. David’s search for the Blue Fairy is, of course, the "search for the father" that Joseph Campbell writes about — in David’s case, literally so. He’s temporarily replaced his "mother" with a nanny-bot, he’s replaced his "evil" brother Martin with his "good" brother Joe, and now he’s going to replace his "bad" father Henry with his "good" father Prof Hobby — although he doesn’t know that yet.