Demi Moore knows that being a mom in Hollywood can be risky business.

And as the actress looked back at her time preparing for 1992's A Few Good Men , she reflected on the rehearsals with costar Tom Cruise while she was eight months pregnant and how they were less than comfortable for the Mission: Impossible star.

"I think Tom was quite embarrassed," Demi—who was expecting her and now-ex-husband Bruce Willis ' daughter Scout Willis , 34—recalled during a Q&A at the New Yorke r Festival Oct. 25, per People . "I actually felt OK about it. I was moving around, though, right? But I could tell he felt that it was a bit awkward."

The Substance star—who also shares daughters Rumer Willis , 37, and Tallulah Willis , 31, with the

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