Sandra Bullockis opening up about the drama between her andChanning Tatum’s daughters.

During a screening of their film,The Lost City, in New York City last week, the 57-year-old actress revealed that her daughterLailaand Tatum’s daughterEverlyused to bicker when they were in preschool.

“So we were always praying it was the other one’s daughter when we were called into the office,” she quipped.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Jamie McCarthy/Getty Images; Lester Cohen/Getty Images

Sandra Bullock; Channing Tatum

The actress added that their daughters' principal was always “gentle” breaking the news because she and Tatum were “mortified,” but the drama was never one-sided.

“They’re pretty equal,” Bullock said, noting that Laila and Everly are now close friends after spending time together while their parents filmedThe Lost City.

“They’re both equally suited and they were both as strong but now we had a month for them to be quarantined while we were filming and it was a love fest,” she explained. “Just sleepovers, everyone in my bed. It was everyone, not Channing. Just the kids. Channing got the night off, he was off with his buddies.”

Emma McIntyre/WireImage

sandra bullock

Earlier this week, Bullock also talked about her recent decision totake a breakfrom the big screen afterThe Lost City.

“I’m not retiring, just going to not spend time in front of the camera for a while,” she said. “I have beautiful babies. I’d rather look at them.”

Bullock added, “I’d rather look at them every day and have them be mad at me and annoyed and make memories with them for right now.”

“I never said I’m retiring, unless while I’m with the babies, [If] I decide to retire, then I’ll make that announcement,” she continued, before joking, “A very important announcement that no one will care about.”

source: people.com