• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Arts & EntertainmentHollywood

Shark Tank’s Kevin O’Leary says film sets ‘are not democracies’ after the director of ‘Marty Supreme’ put him in his place

Marco Quiroz-Gutierrez
By
Marco Quiroz-Gutierrez
Marco Quiroz-Gutierrez
Reporter
Down Arrow Button Icon
Marco Quiroz-Gutierrez
By
Marco Quiroz-Gutierrez
Marco Quiroz-Gutierrez
Reporter
Down Arrow Button Icon
January 6, 2026, 5:06 PM ET
Kevin O'Leary
Kevin O'Leary, chairman of O'Leary Ventures, during a House Committee on Small Business hearing in Washington, DC, US, on Thursday, Jan. 18, 2024. Julia Nikhinson/Bloomberg via Getty Images

Shark Tank’s Kevin O’Leary isn’t used to taking orders, yet as an actor for the new movie Marty Supreme, the prolific investor had no other choice.

Recommended Video

O’Leary has been a millionaire for more than 25 years and a prolific investor since then. He sold his software company SoftKey to Mattel for $4.2 billion in 1999. More recently, he has invested an estimated $8.5 million into about 40 companies in his role as a judge on Shark Tank since its inaugural 2009 season.

Yet, on the set of Marty Supreme, where he played ruthless millionaire businessman Milton Rockwell opposite Timothée Chalamet’s character Marty Mauser, O’Leary learned that just because he calls the shots in every other aspect of his life, doesn’t mean he was holding the reins on set.

(Minor to major spoilers follow for Marty Supreme.)

“I learned my lesson that film sets are not democracies. I’m not used to being told what to do. I do the telling,” O’Leary told Variety. “We shot something 20 times and I said to Josh [Safdie], ‘OK, I think we got it. We can move on.’ He said, ‘What the f*** are you talking about? There’s no moving on until I say we’re moving on.’”

O’Leary’s contributions to the film

Yet, although O’Leary was not in control on set, Safdie and co-writer Ronald Bronstein were happy to include his notes for a character that echoed some of his own personality. One of the most prominent was a monologue delivered by Rockwell to Mauser in which he claimed to be a “vampire” born in 1601.

O’Leary also contributed to Rockwell’s look, and leveraged his knowledge as a horophile when choosing the two watches his character wore on each wrist, one set for New York and the other for Tokyo time. 

O’Leary refused to wear a prop watch or to wear a watch he didn’t own. Instead, he went on a global hunt for era-appropriate pieces to wear in the film.

He called up Rolex and secured a Patek Phillipe from the 1950’s which he admittedly purchased “at a crazy price.” The other, a Seiko-made watch called “Super” from 1952 was impossible to find on the secondary market. In the end, “Seiko found one — it might have come from some museum — and they gifted it to me,” O’Leary told the New York Times.

Maybe one of O’Leary’s most memorable scenes was when he literally smacked the Oscar-nominated Chalamet on his bare butt with a real ping pong paddle in order to bring more authenticity to a pivotal scene that he said required 40 takes and took until 4 a.m. to finish.

To be sure, one of his biggest qualms with the film was the ending, which wraps up poorly for his character, and which he called “absurd,” according to Variety.

“I had lots of fights with Ronnie [Bronstein]— well, not fights, but I said, ‘Guys, this Marty Supreme guy, I would never let anybody [expletive] me over like this. This would never happen to me, ever. And he is not paying an adequate price,’” O’Leary told the New York Times.

Yet, not all of the Shark Tank judge’s suggestions were incorporated into the final cut. Apparently, the investor and rookie actor suggested changes for the film’s ending, including that Chalamet’s character’s love interest, Rachel Mizler (played by Odessa A’zion) should die in childbirth in order to add more suffering to an otherwise “kumbaya” ending. In the end, Safdie considered the change but didn’t incorporate it as he thought it was too “sick,” according to Variety.

A reluctant “employee”

O’Leary is not used to being an employee. Just before he sold SoftKey, the company had acquired many of its competitors and stood as the second-largest consumer software company at the time with 2,000 employees. 

As a judge on Shark Tank, he is also used to entrepreneurs seeking him out for his advice, even though he is often brutally honest to contestants on the show. This includes the founders behind The Lip Bar, whom O’Leary told “the chances that this is a business are practically zero.” The lipstick company raised $6.7 million in a 2022 funding round and later went on to tease O’Leary via billboard advertisement.

O’Leary was scouted by director Josh Safdie for the part of Rockwell in Marty Supreme partly because of his reputation on Shark Tank. In fact, according to O’Leary, Safdie sought him out for the role of Rockwell for the same reason television producer Mark Burnett liked him for Shark Tank, “We’re looking for a real asshole,” Safdie reportedly told O’Leary.

Safdie, who previously co-directed A24’s Uncut Gems, accepted a flight on a private jet to O’Leary’s lake house in Muskoka, Canada, to hear him read for the part. As O’Leary admittedly explores other acting opportunities (although he is reportedly waiting for the promotional cycle to end before taking another role) he said he is happy to play the antagonist—and would ideally love to play a bond villain.

“I say this asshole thing’s starting to work for me,” O’Leary told Vanity Fair.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Author
Marco Quiroz-Gutierrez
By Marco Quiroz-GutierrezReporter
LinkedIn iconTwitter icon

Role: Reporter
Marco Quiroz-Gutierrez is a reporter for Fortune covering general business news.

See full bioRight Arrow Button Icon

Latest in Arts & Entertainment

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Arts & Entertainment

Big TechGen Z
Analog-obsessed Gen Zers are buying $40 app blockers to limit their social media use and take a break from the ‘slot machine in your pocket’
By Marco Quiroz-GutierrezFebruary 13, 2026
21 minutes ago
Actress Jennifer Garner
SuccessWealth
Actress Jennifer Garner just took her $724 million organic food empire public—she started her career making just $150 weekly as a ‘broke’ understudy
By Emma BurleighFebruary 13, 2026
3 hours ago
van der beek
LawObituary
James Van Der Beek, child star and face of iconic GIF from ‘Dawson’s Creek,’ dies at 48 in ‘beyond devastating news’
By Mark Kennedy and The Associated PressFebruary 11, 2026
2 days ago
TrumpRx
CommentaryPharmaceutical Industry
TrumpRx is here and it helps, though a bit less than advertised
By Jeffrey Sonnenfeld, Stephen Henriques, Ferron Chen, Asuka Koda and Vanessa McLennanFebruary 11, 2026
2 days ago
SuccessCareers
At 22, Olympic skier Eileen Gu is worth over $20 million. She’s juggling brand deals and sports with school. And she urges Gen Z not to wait until they’re ‘older’ to start
By Preston ForeFebruary 11, 2026
2 days ago
rich
Arts & EntertainmentOlympics
‘I’m not the dad, and I’m not the coach’: Meet the 54-year-old personal injury attorney stealing America’s hearts at the Olympics
By Nick LichtenbergFebruary 11, 2026
2 days ago

Most Popular

placeholder alt text
Economy
Some folks on Wall Street think yesterday’s U.S. jobs number is ‘implausible’ and thus due for a downward correction
By Jim EdwardsFebruary 12, 2026
1 day ago
placeholder alt text
Crypto
Bitcoin reportedly sent to wallet associated with Nancy Guthrie’s ransom letter providing potential clue in investigation
By Carlos GarciaFebruary 11, 2026
2 days ago
placeholder alt text
Economy
‘Nothing short of self-sabotage’: Watchdog warns about national debt setting new record in just 4 years
By Tristan BoveFebruary 11, 2026
2 days ago
placeholder alt text
Economy
America’s national debt borrowing binge means interest payments will rocket to $2 trillion a year by 2036, CBO says
By Eleanor PringleFebruary 11, 2026
2 days ago
placeholder alt text
Success
Ex–Google exec says degrees in law and medicine are a waste of time because they take so long to complete that AI will catch up by graduation
By Preston ForeFebruary 11, 2026
2 days ago
placeholder alt text
Commentary
Something big is happening in AI — and most people will be blindsided
By Matt ShumerFebruary 11, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.