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)? 

Related documents: [0]  [DOC] Alden Caleb Ehrenreich ( ; born November 22, 1989) is an American actor. He made his feature film debut in Francis Ford Coppola's independent film "Tetro" (2009) and appeared in Coppola's subsequent film "Twixt" (2011). In 2013, he appeared in Woody Allen's "Blue Jasmine", Park Chan-wook's "Stoker" and starred in Richard LaGravenese's "Beautiful Creatures". In 2016, he starred as Hobie Doyle in the Coen brothers comedy "Hail, Caesar!" and as Frank Forbes in Warren Beatty's "Rules Don't Apply". In 2018, he will star as Han Solo in an as of yet untitled "Star Wars" spin-off film revolving around the character's younger years. [END] 
[1]  [DOC] 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 Tye Sheridan, Jack Huston, Alden Ehrenreich, Jennifer Aniston, and Toni Collette. It premiered at the 2017 Sundance Film Festival on January 21, 2017. [END]  
Answer: Alden Ehrenreich
Alden Ehrenreich