Transcript for Julia Roberts on Making 'Secret in Their Eyes' With Her Husband
One of Hollywood's favorites is back on the big screen, I'm talking Julia Roberts. She stars in the new thriller "Secrets in their eyes." She plays a tough investigator who will stop at nothing to solve her daughter's murder. I got a chance to talk to her and she shared some secrets of her own. Did we just become best friends. Yes, we might have. Oh, my goodness. It's hard not to smile when in the company of Julia Roberts. Oh, boy. Her signature grin lights up the room here at the iconic Beverly Wiltshire hotel where she shot "Pretty woman" 25 years ago. Do you have any feelings that come over you when you come into this hotel. Abject awkwardness especially when I go into the elevator because the elevators are exactly the same and have the little seats. And that's when I just walk in and kind of look around and everyone is looking at their feet. Reporter: If "Pretty woman" set the tone for the Julia Roberts we've all come to know and love her new film "Secrets in their eyes" shatters that image completely. It's your daughter. What? Reporter: As an investigator who uncovers the body of her own daughter. Brutally murdered. Help me. Reporter: This movie, justice and revenge. How far would you go for justice and resaeng. I feel like part of my personality is ferocious and part of my personality is the greatest power you can wield towards an enemy is to ignore their existence. I don't have the stomach to watch him walk away again. Maybe we go about this a little less officially. The director said you said I don't want a movie star part. I want to get in. I want to get dirty and from what I saw you did exactly that. At points I said, is that Julia Roberts? When you've been in the business this long and people feel they know you as well as they do, you want them to go and enjoy a movie and not think about who you are. Did it help to have your husband the cinematographer on the film. Did it help to have him there when you got out of a heavy scene. It helped in a couple of ways because, first of all, I try to impress him so much that really as much as I try to impress my director, I just think, is he -- okay. Are you really trying to impress your husband. He's looking. Oh. Really. Of course. He's my person. I love that. He's my person. And part of it is we would spend the whole day together. By the time we're home we're not talking about work, it's just all about the kids which was amazing. You have any parenting tips for me? My daughter said to me last year we were talking about school, and she was having some frustration and she said, mommy, you just don't know what it's like and I said to her, guess what I'm going to do today, I'm going to sit in the back of your classroom all day today and understand what it's like. By the time the bell rang to go home, this is what I know, no child wants to get in the car and have their parents say, how was your day? Because you sat there. The relentless pursuit of knowledge and then you get in the car with this new safe moment, how was your day? What did you do? Tell me the whole thing. It's like, no. And there's something I hear you play at the dinner table called family dinner game in family dinner game. Where you ask questions around the table. Uh-huh. Do you have questions. I have a few questions. I have questions. What's your middle name. Anthony. Hmm what is the first thing you look at when you see somebody. I guess, you know, your eye, your smile, probably your eyes. They're brown, they're twinkly. I'm blushing. Okay, thank you. That's when you say, oh, so are yours. You know what, you have this personality, sparkly brown eye, 9 beautiful smile, you exude happiness. My gap used to be as big as yours then I stopped sucking my thumb. I never sucked my thumb so what's my excuse. I love it. Thank you so much. I appreciate it. "Secrets in their eyes" is in theaters on November the 20th and you can see. More of my interview with Julia tonight on "Nightline."
This transcript has been automatically generated and may not be 100% accurate.