Kevin O'Leary loves his 'Marty Supreme' costar Timothée Chalamet so much, he bet $1,000 on Kalshi that he'll win an Oscar

Kevin O'Leary.

Ser Baffo/Getty Images

• Kevin O'Leary is betting big on Timothée Chalamet.
• O'Leary said on the red carpet that he bet $1,000 that his "Marty Supreme" costar will win an Oscar.
• Chalamet is up against Michael B. Jordan for best actor.

Kevin O'Leary is confident his "Marty Supreme" costar Timothée Chalamet is walking away with the best actor Oscar.

The "Shark Tank" star is so confident, in fact, he put money on it.

O'Leary, who plays...