Ryan Reynolds posts March Madness brackets online and bets 'IF' co-star and director John Krasinski that the loser of their pool will 'buy out a theater in the winning team's city to watch' the upcoming children's film

Actor and Wrexham AFC co-owner Ryan Reynolds is the latest celebrity to vie for the public's attention by sharing their NCAA Tournament brackets on social media.

Only instead of wagering on March Madness with coworkers, friends and anonymous rivals, Reynolds is putting his brackets up against his 'IF' co-star, John Krasinski.

'The best bracket comes bearing gifts… IF my bracket beats @johnkrasinski, the winner will buy out a theater in the winning team's city to watch @IFMovie on opening night.'

Reynolds is predicting that North Carolina's men's team will be Purdue and All-American center Zach Edey in the NCAA Tournament finale, while Caitlin Clark and Iowa are projected to win the women's national championship by beating Texas.

'IF' is an upcoming live-action animated fantasy story directed by Krasinski and starring Reynolds, Krasinski, Cailey Fleming, Fiona Shaw, Alan Kim, and Liza Colón-Zayas. Krasinski's 'Office' co-star Steve Carrell also voices a character in the film along with Phoebe Waller-Bridge and Louis Gossett Jr. The film is scheduled to be released on May 17.

John Krasinski and Ryan Reynolds are seen on the set of 'Imaginary Friends' in 2022

Reynolds is predicting that North Carolina 's men's team will be Purdue in the NCAA final

Ryan Reynolds didn't overthink the women's bracket, going with Caitlin Clark and Iowa 

Actor Ryan Reynolds is putting his brackets up against his 'IF' co-star, John Krasinski's 

Reynolds' Iowa pick appears to be a solid guess.

Not only do the Hawkeyes boast Clark, the reigning Player of the Year, but they're also experienced, having reached last year's final, where they fell to the LSU Tigers.

What's more, 14 of the past 16 women's national champions have been top seeds, just as Iowa is this year.

If there is an obstacle for Iowa, it could come in the Elite 8 in Albany, where there's a chance of a rematch with LSU and star power forward Angel Reese.

North Carolina's men's team, meanwhile, is trying to win a national title one year after missing the tournament altogether.

The good news for the Tar Heels and coach Hubert Davis is that they, too, are experienced. Most notably, senior power forward Armando Bacot has already played in a national championship, losing to Kansas in 2022.