"I Still Believe" chronicles Jeremy's rise to stardom in the early 2000s, while struggling with his first wife Melissa Lynn Henning-Camp's cancer diagnosis - she died in 2001, less than four months after the couple wed.
Actress Brittany Robertson will play Melissa in the faith-based film, which is named after the first song Camp wrote following her passing.
Production is due to begin in Alabama later this month, ahead of a March, 2020 release.
Camp has since gone on to find love again with South African singer Adrienne Liesching, who he married in 2003. The couple shares three children.