“He Watched the Show and Said, ‘Okay… I See It Now’”: Ali Larter Reveals the Unexpected Moment Landman Sparked Jealousy — and the Secret That’s Kept Her Marriage Strong for 16 Years Ali Larter has spent much of the past year in the spotlight thanks to Landman — but the most surprising reaction to the show didn’t come from fans or critics.

Ali Larter is sharing the secret to a strong relationship after more than 16 years of marriage with husband Hayes MacArthur.

The Landman star, 49, wed the fellow actor, 48, on Aug. 1, 2009. While exclusively chatting with PEOPLE at the Formula 1 Heineken Las Vegas Grand Prix on Saturday, Nov. 22, Larter revealed the simple key to her long-term marriage.

“Enjoy every day,” Larter says. “Try to be really kind.”

Theodore MacArthur, Ali Larter, Vivienne MacArthur and Hayes MacArthur attend the F1 Las Vegas Grand Prix on November 22, 2025 in Las Vegas, Nevada.
Ali Larter and Hayes MacArthur with their children, Theodore and Vivienne, at the F1 Las Vegas Grand Prix on Nov. 22, 2025.David Becker – Formula 1/Formula 1 via Getty

Since tying the knot in an outdoor ceremony at MacArthur’s family estate in Kennebunkport, Maine, Larter and MacArthur have welcomed two children together — 15-year-old son Theodore and 10-year-old daughter Vivienne. Larter tells PEOPLE that one thing she most admires about The Runarounds star is his caring nature toward her and their kids.

“The way that he takes care of our family,” Larter answers, of what makes her heart race for her husband.

Larter and MacArthur met on the set of the 2005 movie Homo Erectus. Two years later, the pair got engaged in December 2007. When the couple said “I do” in 2009, Larter wore a Vera Wang sweetheart neckline, an A-line gown of Chantilly with hand-pieced corded lace appliqué, while MacArthur opted for a Ralph Lauren Black Label peak-lapel tuxedo with a Polo Ralph Lauren bow tie.

Speaking to Rue Magazine for a September 2024 cover story, the Legally Blonde and Varsity Blues alum explained that she and MacArthur “fell in love with the beauty of the mountains and their quiet grandness” as well as the “real sense of community” in the area.

Hayes MacArthur, Ali Larter at the Los Angeles premiere of "Landman" at the Paramount Theatre on November 12, 2024 in Los Angeles, California.
Hayes MacArthur and Ali Larter in November 2024.Gilbert Flores/Variety via Getty

“Most of the time in my life, I feel like I’m going 1,000 miles an hour and these giant rocks chill me out,” the actress told the outlet.

She added, “The mountains have a way of grounding you and slowing you down—especially when you’re stuck in traffic because there’s a herd of elk blocking the road.”