Adams and Mortensen join 'On the Road'

Amy Adams and Viggo Mortensen have both signed to star in the upcoming film adaptation of Jack Kerouac's On the Road.

The actors join Garrett Hedlund, Sam Riley, Kristen Stewart and Kirsten Dunst in the picture directed by Walter Salles, reports Deadline.

Mortensen will play Old Bull Lee, the character reportedly based on writer William S. Burroughs. Adams is to portray Lee's wife Jane.

Motorcycle Diaries screenwriter Jose Rivera penned the script, based on Kerouac's novel.

On the Road is scheduled to arrive in US cinemas sometime in 2011.