Rose Byrne and Seth Rogen play new parents in Bad Neighbours.
Rose Byrne and Seth Rogen play new parents in Bad Neighbours. Universal Pictures

Rising Rose Byrne in full bloom in the movie Bad Neighbours

AUSSIE beauty Rose Byrne has solidified her position as one of Hollywood's up and coming funny women.

While she was part of the acclaimed ensemble cast of the hit comedy Bridesmaids, and has gone on to roles in The Internship and I Give It A Year, Byrne got her big comedic break in the 2010 film Get Him to the Greek.

Her latest movie, Bad Neighbours, has the 34-year-old work once again with Get Him to the Greek director Nicholas Stoller.

Q: Seth Rogen mentioned that there weren't a lot of formal rehearsals for this film, that it was more just having discussions. Is there anything you were particularly proud of that you were able to get in the movie?

A: When we initially had those conversations, I didn't want her to be the wife character that you usually find in movies. We wanted to stay away from the archetype that is prevalent in these types of films. We wanted to go against the convention of the nagging wife or the partner who is not involved, waiting at home with her hand on her hip. We wanted her character to be just as irresponsible as him so that they're having this nervous breakdown about being parents together.

Q: Did you identify with your character, Kelly?

A: I could identify with Kelly in a certain way. I don't have children and I'm not married, but I could relate to that transition period where you don't have that stamina or need to go out. To be honest, she's quite different from me. I'm a pretty controlling person and she's not. She's actually the opposite, an ex-party girl and a little bit of a hippie and irresponsible. She hasn't really changed enough.

Byrne, centre left, in the movie Bridesmaids. Suzanne Hanover

Q: Is there a trick to working with kids?

A: The little twin girls were such good kids. They were really easy with lovely temperaments. I have nephews, so I know a few tricks to get kids distracted but we were so lucky. I've worked with difficult infants who simply aren't into whatever we need to do, but these girls were so happy and easy. They were a delight, and everyone loved having them around. We used to say that if we could guarantee having this sort of child, we'd have a baby tomorrow.

Q: There are some comedic sex scenes. Is funny sex easier to shoot?

A: Comedic sex scenes are actually easy. They are so absurd and ridiculous, and because it's not about intimacy, it's much easier. Physically, the scenes were not that revealing; they were more about making people laugh. It's a go-for-broke situation. It's great working with Seth because he's so wired for that. He can access a part of his brain that is so unfiltered, and you're in really safe hands.

Q: The film has a very male-heavy cast. Was it like a boy's club on set?

A: At times I felt a little outnumbered. I'm a little quiet on set and keep to myself, but everyone was very warm and friendly. It's a tight-knit group with Nick and Seth. It was really fun, especially when Carla was there. I also made an effort to integrate in, which was easy because Nick is sweet and kind.

Bad Neighbours opens on May 8.