Maggie Gyllenhaal has revealed she'd hate to do a film sex scene which looks like "softcore porn".
The actress plays alongside Hugh Dancy in tongue-in-cheek comedy Hysteria, which is about the invention of the vibrator.
On the red carpet at the Toronto International Film Festival, she said: "Sometimes you can do a sex scene and it'll look like a softcore porn, which will be about the bra and showing the breast - that scares me. But a real sex scene, that is about communication, like the way all sex is. Even if no one is communicating in the sex. I'm interested in that in film."
She went on: "I'm interested and curious about sex and sexuality like I think most people are. I am interested in how women and sex are portrayed in movies. I think sex is such an interesting way of communicating."
Hugh added that the film is one of the few out there with an "intelligent and funny" script.
"This is a romantic comedy that I feel you don't know what is coming in every scene, and that's rare enough in itself," he said.
He added: "It's a well-written script. The subject matter makes for a good one-liner but unless it's well treated, it could be a disaster. I felt that director Tanya Wexler had chartered an interesting course through it."