Amanda Seyfried hit the red carpet at the Sundance Film Festival to promote her new film, "Lovelace" - a biopic about 70s porn star Linda Lovelace and her role in the adult film, "Deep Throat." For Seyfried, portraying Lovelace was a risk worth taking. SOUNDBITE: Amanda Seyfried saying (English): "I feel the pressure. I'm nervous right now. I knew this was an important movie to make and the fact that I'm playing... I'm responsible for validating her is a huge challenge. But I was looking for that." Sex has been a common theme among many films at Sundance this year. From documentaries on the business of porn to comedies about young men dealing with porn addictions. All that sexuality came as no surprise to Seyfried. SOUNDBITE: Amanda Seyfried saying (English): "I think there's some sort of sexual awakening happening, I really do. There's a lot of movies about sex here and I think it's important. Anything to get away from the violence in movies." "Lovelace" will screen next at the Berlin Film Festival in February.