Joshua Close has played a lot of roles. He’s been in FX’s “Fargo,” “Killers of the Flower Moon” and Netflix’s “Wayward.” But nothing quite prepared him for playing Slinger, the combat veteran at the center of the film “American Solitaire,” which hits select theaters Friday.

Close drew on his own family to find the character. His cousin served multiple tours in Kandahar, Afghanistan, as a special forces member, and one conversation stuck with him.

“He said he had to go back on his third tour because he didn’t feel safe at home,” Close told Military Times. “He felt more comfortable being in situations like Kandahar because he knew who the people were around him. He knew how to behave.”

That kind of detail is exactly what writer-director Aaron Davidman was after. A first-time feature director, Davidman spent years traveling the country talking to people about guns, violence and the cost of military service before writing the script.

A conversation with a former Army captain who served in Iraq and Afghanistan for more than a decade became the seed of the story.

“He just impressed me with the real layered, nuanced, complex relationship to service, firearms, healing, reintegration,” Davidman said. “I decided to focus a story on a guy like that. What would it be like to follow a trained warrior and a reintegration through their eyes, through the experience of the veteran?”

The result is a film that resists the chest-pounding war movie template.

Slinger comes home from Afghanistan wounded and estranged from his young son, adrift in a country he trained to protect but no longer recognizes himself in. The film examines how, for some veterans, post-traumatic stress disorder and reintegration grief don’t manifest dramatically, but instead quietly erode a person from the inside.

Co-stars Joanne Kelly and Gilbert Owuor round out the film’s central trio, each character at a different point on the road back. Owuor said the dynamic mirrored something true about group identity and the loneliness that can live inside it.

“When you look closer and start to examine the different members in the group, you realize that even for them, that can start to break down depending on where you are in the journey,” he said. “And I think that’s a very scary place to find yourself.”

Kelly drew on her own family, as well, including a cousin who deployed four times to Afghanistan as a nurse. The preparation opened a conversation between them that had never happened before.

“I think it was one of the things I love about this job, the constant learning about humans, about different lives,” Kelly said.

Davidman has partnered with impact agency Picture Motion to build post-screening discussions into the release. It’s a deliberate response to the isolation the film depicts, and to a broader cultural moment the filmmakers believe demands a quieter kind of conversation than the one usually surrounding guns and military service.

“We’re not holding a screening, we’re convening,” he said.

For Davidman, the most revealing research didn’t come from one-on-one interviews but from watching veterans talk to each other.

“Watching these brothers and sisters share their stories, and they may not have even served at the same time or in the same branches, but there was a shorthand that was so informative,” he said.

That earned specificity shows on screen. “American Solitaire” doesn’t reduce its protagonist to a symbol. Slinger is a man trying to figure out who he is once the structure that defined him is gone, a challenge researchers and clinicians have long identified as among the hardest parts of coming home.

“I hope that people feel there is an accurate portrayal of veterans and of three-dimensional human beings going through real experiences,” Close said, “and that they can relate and feel less alone.”

“American Solitaire” opens in select theaters Friday and is coming to VOD at a future date. More information at americansolitairefilm.com.