The film, about teen surfing champ and shark attack survivor Bethany Hamilton, is directed by Sean McNamara. The project marks country music star Underwood's big-screen debut.
Based on Hamilton's autobiography, the biopic centers on the surf icon (Robb) who defied all odds to compete and win professional championships after losing her arm in a shark attack at age 13. Quaid and Hunt play Hamilton's parents. Underwood is a church youth leader.
McNamara, Deborah Schwartz, Douglas Schwartz and Michael Berk wrote the screenplay.
The film began shooting this week in Hawaii.
Mandalay Vision is producing alongside Brookwell McNamara Entertainment and Life's a Beach Entertainment. Affirm Films, a Sony Pictures Entertainment company, will distribute.