Castle Falls is a 2021 American action film starring and directed by Dolph Lundgren. It was produced by Lundgren with Andre Relis and Craig Baumgarten. The film co-stars Scott Adkins, Jim Chandler, Kim Delonghi, Dave Halls, Scott Hunter, Robert Berlin and Lundgren's real life daughter Ida Lundgren.

Former MMA fighter Mike Wade works on the demolition crew for Castle Heights Hospital, an abandoned facility scheduled to be blown up in just a few hours. The crumbling building hides $3 million in cash stashed away by a now-imprisoned gang leader who intended to retrieve it one day.

Mike discovers the money and decides to take it. Richard Ericson, a corrections officer whose daughter is battling cancer, also learns of the money’s location. Richard heads to the hospital to secure the cash before the building comes down.

The gang that originally hid the money sends a team of armed men to recover the loot before the place is leveled. Mike and Richard cross paths and realize they must work together to survive.

With only 90 minutes left before the demolition, the two unlikely allies navigate the maze-like corridors, fend off attackers, and make tough decisions in a brutal race against time to escape the building alive with or without the money.

They manage to defeat the gang members and escape the building. Ericson uses his share of the money to pay for his daughter's medical treatment, while Mike finds a renewed sense of purpose and hope for the future.

In early press junkets for the film, the film was to be set in a condominium with Lundgren playing "Shea", one of two rival gang leaders, and Adkins playing an ex-fighter working as a janitor who stumbles upon the cash.^{[citation needed]}

The film had a limited release in the United States on December 3, 2021.