05/17/2010 05:12 am ET Updated May 25, 2011

Amanda Seyfried: 'I'll Never Forget' Sex Scene With Julianne Moore

"Was it different because it was [with] a girl? No," Moore told reporters in New York Monday about her onscreen tryst with Seyfried. "Whenever you have an intimate scene with somebody, you're very prepared. Everyone knows exactly what's happening and it's usually very choreographed ... Amanda and I were comfortable with each other."

Moore, 49, went on to call her 24-year-old costar "lovely" and "quite impressive." But it wasn't such a clear-cut call for Seyfried, who admits to being so "intimidated" she tried to back out of the movie.

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