Kevin Costner mortgaged his California property to fund his passion project "Horizon: An American Saga."
The 10-acre property was used as collateral for a loan to partially finance the film series.
He has been working on "Horizon" since 1988 but struggled to find financing.
To make the films, he deferred his fees as a writer, producer, and actor.
Costner sees movies as powerful and believes in the longevity of storytelling.
The cast includes Sienna Miller, Sam Worthington, Luke Wilson, and Jamie Campbell Bower.
Costner previously self-funded films like "Dances with Wolves" and "The Postman."
"Dances with Wolves" won him two Academy Awards and critical acclaim.