Kevin Costner acknowledges he's taken a financial risk with Horizon: An American Saga

Kevin Costner's commitment to 'Horizon: An American Saga' has "gone pretty deep".

The 69-year-old actor has committed millions of his own fortune to make the four-part Western saga, and Kevin is happy to pursue his dream, in spite of the cost.

Asked about reports that he's mortgaged a house in order to make the series, Kevin told 'Extra': "More than that. It’s gone pretty deep."

Despite this, Kevin has tried not to dwell too much on the financial aspects of the project.

The actor - who stars in and directs the series - explained: "You have to know what you're doing and that's what you're doing. And so now there's no crying, there's no complaining. There's just holding on to the rope."

Kevin is happy to take the risks in order to realise his dreams.

He said: "I have dreams like anybody, and sometimes I have to let go of my dreams and sometimes I can't let go of them, and I have to figure out what to do.

"I don't get everything I want. I would love the idea that somebody was a big brother to me and would help me. And if they're not, that cannot keep me from my dream. And these things can't own me. And so, they can go at risk and they have."