Josh Brolin plays the leader of the Granite Mountain Hotshots. He didn't hesitate when asked his bravest moment.
"Having kids as young as I had them. It shoulda been a disaster but it wasn't," he says.
He was 20 when he had his first child.
"know I look at 20 year olds now and I'm like what? I remember telling my buddy at the time, y'know we're pregnant. We're gonna have a kid. And he's like no, no, no, no, no. Not you."
Taylor Kitsch is a firefighter in the movie. He goes way back for his brave moment.
"I remember being super young and like 125 pounds and trying to fight my oldest brother. He must've been like 17 and I'm 10 deciding to stand up to him. I literally ended up in a laundry basket with him sitting on top," Taylor says.
Miles Teller's character turns his life around in the film. In real life Miles may have saved the life of a young mom in Miami.
"And I was in the ocean and this woman swims up to me and she's very scared. She goes, 'Don't freak out, a big shark just swam right by me.' And I'm just like holding this woman's hand, bringin' her to the beach.And she was pregnant. She had this baby. And the woman's like, who are you? And I wish I had a better line. I think I just said Miles."