Kevin Costner Reportedly Swapping the Wild West for the Deep Sea After Yellowstone Drama
Kevin Costner Is Said to Be “Furious” Over New Yellowstone Reports
After years of dominating the Western genre with Yellowstone and his passion project Horizon: An American Saga, Kevin Costner is once again in the headlines—but not for another cowboy epic.
A recent exposé from The Hollywood Reporter, titled “How Kevin Costner Lost Hollywood,” chronicled the veteran actor’s turbulent career in recent years, including the financial hurdles of Horizon and the on-set clashes that allegedly fueled his departure from Yellowstone.

The story opened with a now-verified incident between Costner and co-star Wes Bentley (Jamie Dutton), which Bentley’s team confirmed as a “work-related argument” that occurred during an intense emotional scene and was later resolved.
But according to Page Six, Costner was anything but calm about the article’s publication. A source told the outlet:
“He’s said to be furious over the new Hollywood Reporter story about how he’s lost the plot… He’s very angry about it.”
The piece also reignited talk of the creative tension between Costner and Yellowstone creator Taylor Sheridan, who reportedly clashed with the actor over scheduling conflicts tied to Horizon’s production.
From Cattle Drives to Coral Reefs: Costner’s Next Project Might Be Underwater
While Sheridan expands the Yellowstone universe with spinoffs like The Dutton Ranch and Y: Marshals, Costner appears to be charting a new course—away from the prairie and toward the ocean floor.
Per Page Six, the Oscar-winning director and actor is developing a TV series centered on deep-sea diving and the search for sunken treasure. A source revealed:
“Kevin Costner is on a deep-sea diving binge to discover sunken treasure.”
The insider also claimed that Costner has recently found gold coins and emeralds in the Caribbean and is now shopping a series based on those discoveries:
“He found gold coins and emeralds recently in the Caribbean. Now he’s shopping a TV series on finding sunken treasure around the world.”
The report added that no network or streamer has signed on to finance the project yet, though Costner is reportedly passionate about bringing it to life.
Costner’s Longstanding Fascination With the Ocean
The maritime theme isn’t exactly new for Costner. The Dances with Wolves star has a well-documented interest in underwater exploration and has previously collaborated with underwater archaeologist Alex Mirabal.
Costner’s love for the sea has also shown up in his filmography—most notably in 1995’s Waterworld, the cult-favorite post-apocalyptic adventure set on a flooded Earth, and The Guardian (2006), in which he played a U.S. Coast Guard rescue swimmer.
If the treasure-hunting series does move forward, it could take the form of a docuseries, given Costner’s recent success in nonfiction television. In 2025 alone, he has released two docuseries — Yellowstone to Yosemite with Kevin Costner and Kevin Costner’s West — both exploring American landscapes and history.
However, given his cinematic flair for adventure, fans shouldn’t rule out a fictional drama inspired by real discoveries, either.
A Career Pivot After a Tumultuous Year
Costner’s rumored shift from Westerns to waves comes after a rocky chapter in his relationship with Hollywood.
His exit from Yellowstone—amid conflicting accounts about filming schedules, creative disputes, and Horizon’s demanding shoot—sparked months of speculation about whether he would return for the show’s final season (a prospect that now appears unlikely).
Meanwhile, his massive Western epic Horizon has struggled with financing and box office performance, despite being a long-gestating passion project spanning multiple films.
If this new series does get off the ground, it may represent not only a creative refresh for Costner but also a way to reconnect with audiences outside the confines of the Yellowstone brand.
The Bottom Line
Whether he’s wrangling cattle in Montana or searching for lost gold beneath the Caribbean waves, Kevin Costner remains one of Hollywood’s most determined storytellers.
His next chapter may not be in the West—but if the rumors prove true, the journey from saddle to scuba tank might just be the most unexpected twist yet in his storied career.