Unsung Hero officially hits theatres today. 

The film focuses on the story of the family behind five-time Grammy Award-winning artists for King & Country and Rebecca St. James.  

"This is a film about our Mum and motherhood, family and miracles, sacrifice and faith… A film for YOU…It’s been a pretty outrageous undertaking, but it’s a story we’re incredibly proud of, and we can’t wait to share it with you," said for King & Country in a social media post. 

Luke Smallbone says they hope by sharing their family's real story, people will not be able to argue about the truth of it. 

"This is just what happened. We would pray for things, and it happened," Luke explained. "My hope is that people will see this story and say I've got some questions to answer."

At the end of the day, he says he wants to see people who watch this movie go home and love their families.

"I believe in the power of family," Luke explained. "I think family is more important and more powerful today than it ever has been in the history of the world, but yet we do not value it as such."

The film stars Joel Smallbone, who plays his father, while his brother Ben Smallbone directed it. The film will also star Daisy Betts, Kirrilee Berger, Jonathan Jackson, Lucas Black, Candace Cameron Bure, Terry O'Quinn, and Hillary Scott.