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Where to see him: "The Road"
What he's done: The young Australian actor's most prominent role was in 2007's "Romulus, My Father," a film based on the memoir of professor Raimond Gaita. He gained critical acclaim for his role as the son of a strained couple played by Eric Bana and Franka Potente.
What he's playing: Smit-McPhee takes another turn playing a son, this time to Oscar -nominated actor Viggo Mortensen, in "The Road," the onscreen adapation of Cormac McCarthy's post-apocalyptic novel.