“There’s no fake ass here.”

Kevin O’Leary talks spanking Timothée Chalamet’s bare butt in Marty Supreme: ‘He didn’t want a stunt double’

"There's no fake ass here."

By Mike Miller

Mike Miller

Mike Miller is the executive editor on the movies team at . He previously worked as a writer-reporter for PEOPLE and TMZ.

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December 25, 2025 3:00 p.m. ET

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Kevin O'Leary in 'Marty Supreme'. Credit:

- Kevin O'Leary reveals that *Marty Supreme* star Timothée Chalamet insisted on not using a stunt double for a spanking scene.

- O'Leary says Chalamet's rear end had the paddle's brand "imprinted on it" by the end of filming the scene.

- He also talks about working with director Josh Safdie to make his character, Milton Rockwell, feel more like himself.

**Warning: This article contains spoilers for *Marty Supreme*. **

Whether it's table tennis or movie-making, Timothée Chalamet and Marty Mauser are willing to bend over backward — and forward — to achieve greatness.

In the new sports drama *Marty Supreme* from Josh Safdie (now in theaters), Chalamet plays ping pong wizard Mauser, who, desperate to compete in a major competition in Japan, begs Kevin O'Leary's tycoon Milton Rockwell for a ride to Tokyo on his private jet.

The only problem is that the business magnate hates him — and for good reason. Besides sleeping with his wife (Gwyneth Paltrow) and insulting his dead son, Mauser had also previously rejected Rockwell's offer to get him to Japan under the condition that he purposefully lose an exhibition match. **

Timothée Chalamet's Marty Mauser begs Kevin O'Leary's Milton Rockwell for a ride to Japan in 'Marty Supreme'.

Courtesy of A24

Now, with nowhere else to turn, Mauser sneaks in uninvited to a swanky party in Rockwell's home and begs for his support in front of his wealthy friends. Seizing the opportunity to humble this cocky nobody, Rockwell tells Mauser to get a ping pong paddle and pull his pants down for a public spanking.

"That scene was shot at about 3:45 in the morning," O'Leary tells **. "That was the night that my daughter and wife were visiting, but they couldn't handle past 2 a.m. They left."

The initial plan was that the *Shark Tank *host and real-life business mogul, who makes his big screen debut in the film, would not actually be spanking Chalamet.

"We had a stunt ass, and I was gonna smack the stunt ass with a stunt paddle that had a hinge in it, so that it wouldn't do that much damage to the skin," O'Leary explains. "But Josh really wanted it to be a very kinetic swing, a long arced swing that they could film from two angles to get the full impact."

Gwyneth Paltrow and Timothée Chalamet in 'Marty Supreme'.

Courtesy of A24

But at the last minute, Chalamet "came out and said, 'No, there's no fake ass here. It's gonna be my ass. And I said, 'Listen, man, you don't want me to hit you the way Josh wants me to hit you.' And he said, 'I don't give a s---. Let's do it.'

"He didn't want a stunt double," O'Leary continues. "He wanted his own ass in it."

For the first couple of hits, the Shark says he "tried to moderate my enthusiasm" and "take it easy on his skin, because I knew we'd do multiple takes and it would just keep getting red, and we'd have to ice his ass."

But Safdie, he adds, "wouldn't have any of it. He said, 'No, no, no, no, no, no. This is a pivotal scene. You are going to hit him with all of your might. And I said, 'Timmy, are you up for this?' He said, 'Yep.' And, oh man, that's exactly what I did."

'Shark Tank' star Kevin O'Leary says 'Marty Supreme' could've saved 'millions' by using AI instead of human extras

See Timothée Chalamet transform into a ping-pong hero in the trailer for Josh Safdie's 'Marty Supreme'

O'Leary chuckles as he recalls, "his ass had the imprint of that paddle, 'cause we didn't have a fake paddle. We had a real paddle by this point because we've broken all the fakes."

By the end of the shoot, he says Chalamet's rear end had the paddle's brand "imprinted on it."

While it was not his butt in the hot seat, O'Leary believes Chalamet's pain was worth the gain.

"Josh was right," he says. "It was a pivotal scene. It showed the humiliation that I wanted to instill in him for trying to f--- me over. And it was important to do that before we left for Tokyo, because we had a plan. He agreed to my plan. He's gonna throw the game. I'm gonna get what I want… That's what I would've done."

O'Leary's insight into Rockwell's motivations is part of what led to his getting the role in the first place.

Timothée Chalamet and Kevin O'Leary in 'Marty Supreme'.

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"Over a year ago, I got a phone call from Josh, and he said, 'I am casting for a movie called *Marty Supreme*, and there's a role in it called Milton Rockwell. He's the richest man in America in 1952, and we're looking for a real asshole — and you're it,'" he says with a laugh.

But when O'Leary read the script, he had some notes. If he was going to play Rockwell, he needed the character to behave more like he would in similar circumstances. First and foremost, he would never let a guy like Mauser get the better of him.

"I think the one thing that really bothered me, and I had a lot of discussions with them about this…But I would never let, in real life, a guy like Marty f--- me that way. It would just never happen. It bothered me that my character would let that happen because I feel so connected with Milton…This guy f---ed me, and he didn't pay a big enough price."

Chalamet might disagree.

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