Hollywood newcomer Stacy Martin has publicly thanked her "cool" parents for supporting her through her big breakthrough in Lars Von Trier's controversial new movie Nymphomaniac. The actress bares all and appears to actually have sex with Shia LaBeouf in the film, but she has explained director Von Trier called on "porn doubles" to actually make love in the graphic scenes. She admits she didn't have to have any awkward conversations with her folks about her role in the film as they understood it was just a job. Martin tells WENN, "From the start I always told them what I was doing and they said, 'You just had to start with something like that! You're our daughter. You couldn't start with a Disney movie, with a small play?' "From then on they were very supportive and I showed them the film. My mum thought she would have nightmares and she woke up the next day and she didn't and really enjoyed the film and thought it was funny. They knew I had a porn double. I'd call my mum from the set and say, 'Oh yeah, so tomorrow I need to get my prosthetic vagina done and then we need to talk about the b**wjob scene'. "What other job can you say things like this to your mum? She was like, 'OK, well have a nice sleep and take your vitamins. Good night'. I'm so lucky because they understand and support me."