Even though "Captain America: The Winter Soldier" is due to begin production early next year, the film's helmers Joe and Anthony Russo are concurrently developing another, very different project.
"Life Briefly" is described as an inspirational, true-life drama about Brian Knapp, a young Iowan boy who proved to be a musical genius despite being blind.
Knapp wrote several original songs and played alongside country legends such as Jonny Cash at the age of nine before he unexpectedly succumbed to illness in 1987.
Brandon Willer will pen the script which will center on Knapp's relationship with his father. Charlize Theron is already attached to star.