Documentary based on three New York Times bestselling books by historian Andrew Carroll and inspired by the stage play If All the Sky Were Paper, the film tells the story of Carroll, who travels the world to seek out the greatest war letters ever written
Annette Bening
Laura Dern
Eliza Bennett
Rachel Bloom
Gary Cole
Abigail Cowen
Monique Edwards
Michael C. Hall
Kelvin Harrison Jr.
Paul Walter Hauser
Thurn Hoffman
Richard T. Jones
Jay Lee
Sandra Seacat
Wes Studi
DeWanda Wise
Erick Lopez