'Breaking Dawn' Star Mackenzie Foy Gets Props From Onscreen Grandmother

'This is far too quick!' Elizabeth Reaser says of having a 'granddaughter.'

PARK CITY, Utah — Of the onslaught of new castmembers that have come onboard for the two parts of "The Twilight Saga: Breaking Dawn," the young actress who everyone seems to be most interested in is newcomer Mackenzie Foy. The 10-year-old actress might not be old enough to truly grasp the OME-level of excitement that playing Renesmee, the onscreen daughter of Robert Pattinson and Kristen Stewart, should generate, but she certainly has made quite an impact on her co-stars.

Elizabeth Reaser, who plays matriarch Esme Cullen, was at the Sundance Film Festival when MTV News caught up with her and asked her about working with Foy. Reaser had nothing but wonderful things to say about her newest family member.

"She's wonderful, and she lives across the hall from me in Baton Rouge, and she's a wonderful, great actress," Reaser said. "She never complains about anything. She's so professional about everything. She's such a sweetheart."

Obviously, Foy was cast not only for her acting ability but also for her resemblance to the movie's stars.

"I think it was really well cast between Rob and Kristen. She could be their kid, you know? She looks like that," Reaser said, laughing about the fact that Foy, who is 25 years younger than her, is playing her grandchild. "This is far too quick!"

In October, Stewart said she hadn't had a chance to meet Foy yet, though that has obviously changed by now. She said that she didn't know anything about Foy until "Breaking Dawn" director Bill Condon called her up.

"[He] was like, 'Wait until you see this kid. If you and Rob had a kid, this would be it,' " she told MTV News. "I was like, 'That's so weird.' She just looks like — she sort of looks like Bella. Which is absolutely right. Although the funny thing is she has green eyes, and we both have to wear brown contacts together."

Check out everything we've got on "The Twilight Saga: Breaking Dawn - Part 1."

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