Question: The Yellow Birds is a 2017 American war film directed by Alexandre Moors and based on the novel "The Yellow Birds" by Kevin Powers, the film stars which American actor, that made his feature film debut in Francis Ford Coppola's independent film "Tetro" (2009)? 
Facts:
The Yellow Birds stars Alden Ehrenreich
Alden Ehrenreich is an American actor
Alden Ehrenreich made his debut in Tetro
Answer: Alden Ehrenreich