'It was incredibly violating and terrifying': Kate Bosworth on filming a rape scene with Alexander Skarsgard

Actress Kate Bosworth has revealed that she was left shaken after filming a rape scene for new movie Straw Dogs.

Bosworth stars in the thriller alongside Alexander Skarsgard, the actor who later became her boyfriend in real life before their recent split.

She says she told her co-star to not hold back as he pretended to perform the violent sex assault for the cameras.

Shaken: Kate Bosworth opened up about filming her new movie Straw Dog in the latest issue of America's Blackbook magazine

Shaken: Kate Bosworth opened up about filming her new movie Straw Dog in the latest issue of America's Blackbook magazine

And it left her genuinely feeling traumatized, admitting: 'The panic you see flooding me in that rape scene is real.'

The scene in question, which came early in the shoot, sees Skarsgard's Charlie, an aggressive farmhand, rape Bosworth's character Amy.

'I told Alex not to worry about me, to just go for it,' she recalled in an interview with BlackBook magazine in the U.S.

'I said, "I need you to lose yourself in this moment".

New film: The actress stars in the upcoming thriller, Straw Dogs

New film: The actress stars in the upcoming thriller, Straw Dogs

'And it was actually violent. He's a huge guy. When he was ripping off my clothes in front of a room filled with men, even though I knew it was make-believe, it was still incredibly violating and terrifying.

'The panic you see flooding me in that rape scene is real.'

Even though they had yet to start dating off-screen, Bosworth says she already felt comfortable enough with her co-star to allow him to film such a brutal scene.

Co-star: Alexander Skarsgard plays Charlie, an aggressive farmhand, in the movie

Co-star: Alexander Skarsgard plays Charlie, an aggressive farmhand, in the movie

'Alex is so kind and so dedicated and so incredibly professional,' she says.

'He's got this rare, wonderful control and stillness that you notice in a lot of old movie stars.

'He looks you in the eye. I feel incredibly lucky to have had that type of man on this movie.' 

Exes: Kate began dating Alexander after the film, however they have since split

Exes: Kate began dating Alexander after the film, however they have since split

Skarsgard says making the movie was 'exhausting on an emotional level' but also found it easier because he was working with Bosworth.

'We were just really good friends at the time, but we shared a really special experience on that film,' he told BlackBook.

'Kate is such a great actress and she is so much more than a good-looking Hollywood starlet.'

Off duty: Kate was spotted and about today in Los Angeles
Off duty: Kate was spotted and about today in Los Angeles

Off duty: Kate was spotted and about today in Los Angeles