On the Road ( film ) is adapted from a cartoon drawn by Ralph Steadman .
The film is an adaptation of Ralph Steadman 's cartoon drawn featuring Garrett Hedlund , Sam Riley , Kristen Stewart , Alice Braga , Amy Adams , Tom Sturridge , Danny Morgan , Elisabeth Moss , Kirsten Dunst , and Viggo Mortensen .
On the Road -LRB-film-RRB-