11-year-old award-winning Australian actor Kodi Smit-McPhee will play Viggo Mortensen's son in the film adaptation of Cormac McCarthy's Pulitzer Prize winner "The Road" says The Hollywood Reporter.

The novel tells of a monthslong journey across a barren U.S. landscape after a cataclysmic event destroyed most of life on Earth. Charlize Theron co-stars.

Smit-McPhee recently starred opposite Eric Bana and Franka Potente in "Romulus, My Father" for which the Australian Film Institute honored him with the Young Actor Award.