"Landman" actor Billy Bob Thornton told Fox News Digital he's remained "very close" to his co-star Demi Moore and Bruce Willis’ family over the years. Willis is currently battling dementia.

Landman is based on the Boomtown podcast, which tells the story of a modern-day gold rush. Feel free to check it out if you want to brush up on your oil-industry knowledge. In the meantime, check out the Landman trailer (streaming above) and keep reading for more details.