Sandra Bullock and Channing Tatum are just one day away from the release of their highly anticipated action-comedy, The Lost City, also starring Daniel Radcliffe. This is the pair's first movie together - but the film set is actually not the first place these actors met.

No, they met in the principal's office.

As they explained in a recent interview on The Late Late Show with James Corden, Bullock and Tatum actually first met when they were called to the principal's office of their daughters' preschool; apparently, the two little girls were butting heads in class.

"We have two very very strong-willed little girls," Tatum explained to Corden.

But, one day, the school came up with a solution that would feed into their competitiveness - they proposed a competition to see which of the two girls could be nicest to each other. It worked.

As for Bullock and Tatum, they have had no such issues getting along. As a matter of fact, they're so much of the same mind that Bullock is convinced that they were somehow twins separated at birth.

"We're full-on besties," she said.

Tatum agreed:

"I think I said something incredibly dumb and then all of a sudden we locked eyes and we were like...oh we're both very stupid!"

You can see this pair of 'incredibly stupid besties' on-screen together when The Lost City comes out in theaters tomorrow, March 26.