Kevin Kline attributes his relationship success with Phoebe Cates to the fact that he didn't have a "Hollywood marriage."

Kevin Kline doesn't call his relationship with Phoebe Cates a “Hollywood marriage.”

The Beauty and the Beast star and Cates have been married for 35 years.

“If your marriage lasts longer than six months, you're already in the Guinness Book of World Records for being a Hollywood marriage,” Kline told Business Insider at the Toronto International Film Festival.

However, Kline doesn't consider the couple's union to be a “Hollywood marriage.”

BILLY CRYSTAL SAYS A COMMON GOAL LEFT TO A 54-YEAR MARRIAGE WITH AN “EXTRAORDINARY” WIFE

Kevin Kline and Phoebe Cates attend an event

Kevin Kline married Phoebe Cates in 1989. (Getty Images)

The two never lived in Hollywood, choosing instead to raise their family in Manhattan. Kline also noted that despite being well-known celebrities, they all like to stay out of the spotlight.

“That’s why you won’t see Botox,” Kline joked. “These are my lips, what’s left of them.”

Kline gushed about Cates as a mother and wife as the couple celebrated their 36th wedding anniversary in March.

“Unlike me, she has her head on her shoulders. I’m usually on their shoulders too,” he told the outlet. “She’s a great wife, a great mother, a great person, and she keeps me honest.”

“Except in interviews,” Kline joked.

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Phoebe Cates and Kevin Kline attend a theater event

Phoebe Cates and Kevin Kline have two children together. (Getty Images)

Kline began his career in theater after joining the acting company. He won two Tony Awards for his performances in “On the Twentieth Century” and “The Pirates of Penzance.”

His first film role was in Sophie's Choice. Kline is also known for his roles in “The Big Chill” and “Silverado.” The actor won an Oscar for supporting actor in 1989 for “A Fish Called Wanda.”

Cates began her career as a teen model and first appeared on the cover of Seventeen magazine in 1979. She has also appeared in Elle magazine and British Vogue, among other media outlets.

Cates is known for Sarah in Paradise, Fast Times at Ridgemont High, Private School, Gremlins and more.