George Clooney Reveals Relatable Parenting Santa Trick When Twins Are Misbehaving (Exclusive)

The actor welcomed 6-year-old twins, Ella and Alexander, with wife, Amal Clooney in June 2017

George Clooney is pulling out all the stops to encourage his twins to behave.

The actor, 62, opened up to PEOPLE about his relatable Santa Claus parenting trick at the Los Angeles premiere of his latest directorial effort, The Boys in the Boat, on Monday.

“They're still all into the Santa thing, which is very helpful, because when my kids are acting poorly, let's say in July, I have a call from Santa,” Clooney tells PEOPLE of his six-year-old twins Ella and Alexander, whom he shares with wife, Amal Clooney.

“And I go, ‘Hey Santa, how's it going?’ And he's like, ‘Everything's going good. How are the kids?’ And I go, ‘Well, I don't know. Kids, how are you guys doing?’ They're like, [whining]. And then I get away with it,” he continues of teasing the pair.

Adding that he cast a “friend” as Santa, Clooney notes, “I actually have a buddy whose phone comes up ‘Santa.’ ”

Related: George and Amal Clooney's Kids: Everything They've Said About Parenting

George and Amal, 45, welcomed their children in June 2017.

And three years after their arrival, George opened up to PEOPLE about how becoming a parent had changed how he views the world.

"In marriage, and now with the kids, you give away the selfishness of only looking out for yourself," he said. "It's a wonderful thing. Amal and I talk about it every day. We feel so lucky."

Related: George Clooney Talks Being an Older Dad to His Twins, Dialing Back Work for Family Time with Amal

Lawyer and philanthropist Amal joined her husband on the red carpet on Monday and added a splash of color to the event — held at the Samuel Goldwyn Theater — in a bright yellow A-line gown.

The activist teamed her floor-length dress, which featured a sweetheart neckline, with a metallic embellished clutch and wore her hair in beachy waves.

Meanwhile, George sported a black suit with a navy blue button-down shirt underneath.

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The Ticket to Paradise star also posed with some of cast of The Boys in the Boat at the premiere, including Joel Edgerton, Callum Turner and Bruce Herbelin-Earle.

The movie follows the real-life story of the University of Washington’s 1936 men's rowing team, who went from being the college's second-tier crew to winning gold at the Summer Olympics in Berlin.

The Boys in the Boat is in theaters on Dec. 25.

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