Olivia Wilde thinks actors should "take risks" and "take [their] clothes off".

The actress is starring in comedy Butter alongside Ashley Greene, Jennifer Garner, Hugh Jackman and Ty Burrell. Olivia shares a steamy kiss with co-star Ashley and has joked that actors should always push themselves.

"Take risks, and take your clothes off - even if they don't ask. Leave your comfort zone," she is quoted as saying at a press conference by The Daily Mail.

Olivia is seen seducing Ty's character in the trailer for the movie, but joked that her big screen role "wasn't originally a stripper".

"I already had that big tramp stamp tattoo, so it worked out," she jokingly added.

Ashley agreed that actors constantly need to challenge themselves on screen. The star likes to make bold moves in her career.

"I think it's about going outside of your comfort zone. It's about always working and always moving forward and not allowing yourself to feel comfortable anywhere, because I think if you feel comfortable, you're not doing your job, and you're not where you're supposed to be," she said.

"You should always have this adrenaline rush and always be moving, always be on,' and always be doing something different."