Want to feel ancient? Legendary child actress Dakota Fanning is 28 years old. That little tyke from I Am Sam, War of the Worlds, Man on Fire, and Uptown Girls? She's almost into her thirties!When thinking about Fanning, we automatically envision that tiny blonde kid with bangs and a big smile. And we're not the only ones. Big stars, like Michelle Pfeiffer, also vividly remember Fanning as a child. (Pfeiffer was the first actress Fanning ever worked with — in her feature debut I Am Sam.) Two decades later, the former co-stars are sharing the screen once again on Showtime's The First Lady.