What's the biggest difference between kissing Matt Damon and kissing Brad Pitt? "One's a friend and one's my love," says Angelina Jolie, who co-stars with Damon in the upcoming drama "The Good Shepherd."

"In reality, both the people we're involved with couldn't have cared less about that (love scene) because they know us," Jolie told Diane Sawyer in an interview that aired Friday on ABC's "Good Morning America."

"It's one of those things where it's like the least threatening person," the 31-year-old actress said. "Good luck to you guys, I hope it's not too awkward."

Said Damon, who co-starred with Pitt in the "Ocean's Eleven" and "Ocean's Twelve" movies: "It's weird. ... We all know each other."

Damon married Luciana Bozan while filming "The Good Shepherd." The couple have a 6-month-old daughter, Isabella.

The 36-year-old actor said getting married had more of an impact than he thought it would. "We already had the house in Florida and everything, and so I didn't. ... I didn't think it was going to really change anything necessarily, but it actually did."

Jolie has said that she and Pitt, who will be 43 on Monday, are in no rush to wed. Pitt has wondered why they should marry when gay couples can't.

"I think ... he was commenting just on the state (that) we all wish for," Jolie said. "That's not really a comment on whether or not we would or if we plan to."

"The Good Shepherd," a Universal Pictures release, opens in theaters Dec. 22.

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