EXCLUSIVE: Tom Hanks Talks Channing Tatum's Gender-Swapping Role in 'Splash' Remake: 'Why Not?'

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Channing Tatum will soon be diving into the remake of Tom Hanks' classic 1984 film, Splash, but with a gender twist. This time around, instead of a mermaid, it will be a merman, so naturally, we had to get Hanks to weigh in on the update.

"Fantastic! Why not?" Hanks tells ET. "Give it a shot!"

WATCH: Channing Tatum to Play a Merman in 'Splash,' Disney's Reboot of Classic 1984 Film

Tatum's 22 Jump Street co-star, Jillian Bell, will appear opposite him in the Disney reimagining, essentially playing the role Hanks made famous more than 30 years ago.

"Jillian Bell is going to have a blast," Hanks says. "She's just got to love that guy."

The two-time Oscar winner goes on to joke that Bell could have her work cut out for her in finding something appealing about the handsome Magic Mike star.

"Channing Tatum? What a doof!" he teases. "But if she can find some reason to be attracted to him, I'm rooting for her."

MORE: 'Step Up' Series Is Coming to YouTube With Channing Tatum

While Tatum and Bell work on recreating the magic Hanks and Daryl Hannah had in the water for Splash, Hanks is reviving memories of the miraculous landing Chesley "Sully" Sullenberger had when he glided a disabled plane onto the frigid waters of the Hudson River for Sully.

Captain Sullenberger became a hero after saving all 155 people onboard during an emergency landing on Jan. 15, 2009, but what few people know about is the investigation that followed, which threatened to destroy his reputation and career.

WATCH: First Look at Tom Hanks as Captain Chesley 'Sully' Sullenberger in New Clint Eastwood Drama

Hanks plays the retired airline captain in the movie, directed by Clint Eastwood, sporting a mustache and silver mane.

Sully, based on Sullenberger's memoir, Highest Duty: My Search for What Really Matters, opens on Sept. 9.