What famous American poet wrote the line that provided the title for the 1942 Bette Davis Film Now Voyager? July 6, 2017 By Show answer Walt Whitman. In his two-line poem The Untold Want, in Leaves of Grass, he wrote: “Now voyager sail thou forth to seek and find.” The movie was based on the novel Now Voyager by Olive Higgins Prouty. More Entertainment QuestionsMore Movies Questions