By Saryn Chorney
Updated February 23, 2005 03:00 PM

Paris and Nicky they’re not, but Hilary and Haylie Duff will get to unleash their inner Hiltons as they start filming the new movie Material Girls, about two party-loving heiresses who lose their family fortune. The sisters, who collaborated last year on the song “Our Lips Are Sealed” (for Hilary’s A Cinderella Story soundtrack) and hit the road together, recently chatted with PEOPLE about sharing the spotlight, crushing on Johnny Depp and dealing with overzealous fans.

You guys toured together last year. Any crazy moments?
Hilary: I fell onstage a couple of times.
Haylie: I broke a bunch of heels, and she had a speaker explode one night.
Hilary: I know something weird that happened! Oh my God, this is crazy. This little girl was in the audience and Haylie touched her hand. She had pulled hair out of her own head, a whole huge (lock) of her own hair, and handed it to Haylie.
Haylie: I was like, “Oh my God!”

You have a new film coming out soon, Material Girls. Was that your dream collaboration?
Haylie: We’ve kind of been waiting for the right time to do something together. Everyone kind of thought it was the natural thing for us to do. So, to get to finally do it is really cool. We’re excited, especially because we get to keep our wardrobe.
Hilary: Oh, and it’s a fun story!

Is it similar to your own lives?
Haylie: No! These girls are very materialistic. They weren’t raised with any values. There was nobody in their life telling them what was right and wrong. Or how to treat people.
Hilary: They go out and party. They don’t really care about real things.
Haylie: The only thing that would be similar to us and the movie is how hard they have to work to rebuild their life.
Hilary: And how close they are. They’re really close. Hilary, what’s the most valuable lesson you’ve learned from your big sister?
She’s really good at analyzing people, and giving me advice about that. I kind of got hit really hard when people started knowing who I was – people talking bad about me, and this stuff coming out about our family. And she was like, “Hilary, don’t let it get to you. You know, you’ve seen it a million times with other people.” She just always made me feel really good about it.

You’re both acting and singing. Do you ever feel competitive?
Hilary: No, we picked different things to do. And when we were auditioning and stuff, we’d be like, “If I don’t get it, I hope you get it! Or if you don’t get it, I hope I get it!” You know? It was never ever like (competition).

What about growing up?
Haylie: I was always really close with my mom, and she was always kind of like Daddy’s girl. We had, like, our own parent.
Hilary: We were pretty different too.
Haylie: Yeah. She was into sports and I did dance.

Are there any actors or singers you hope to work with?
Hilary: Each other! You’re my favorite person to work with.
Haylie: There are people you look up to and would love to work with. I’m listening to John Legend right now …
Hilary: John Legend!
Haylie: And also The Game. I love The Game.

Any celeb crushes?
Hilary: We both like Johnny Depp a lot. … Oh, you know who I like? Ryan …
Haylie: Gosling!
Hilary: I know, I love him. From The Notebook. We love that movie.