Seyfried explained on "The Early Show" Tuesday that her character is on a pre-honeymoon to Verona, Italy, when she comes across a 50-year-old letter stuck in a wall. The letter is addressed to Juliet from Shakespeare's "Romeo and Juliet" from a young girl. Sophie, Seyfried's character decides to write back as a "secretary of Juliet."
Seyfried's character then connects with a woman, played by Vanessa Redgrave.
Seyfried said acting opposite the acting legend is "amazing."
"She's the most extraordinary woman, human being, actor," Seyfried said. "… It's astounding to me that I was able to work with her."
The film is all about romance. But is Seyfried herself a romantic?
She does, and she says she's good at giving love advice.
"It depends on the situation. I do I enjoy it," she said. "I've had the opportunity to write some advice throughout the press of this movie."
"Early Show" co-anchor Julie Chen commented told Seyfried she's being compared to Julia Roberts.
Seyfried said she hadn't heard that, but said it's nice to be compared to one of her role models.
"I've seen every movie that she's done," she said. "Growing up from 'Pretty Woman' to 'Duplicity,' which I just saw which I loved, she's amazing. I haven't seen 'Valentine's Day' yet, but she's amazing. She's always attractive and accessible, so being compared to her is a really nice thing."
Seyfried's said she was inspired to act after she watching Baz Luhrmann "Romeo + Juliet" when she was 10 years old. Her father rented the movie, and she said, " (she) couldn't stop watching."
She said, "It was just very intense, the passion was off the charts. (Claire Danes and Leonardo Di Caprio's) chemistry was amazing. And I wanted to be in love or at least be a part of whatever that was, that whole world of performing and being emotional. I don't know. It was an obsession for me. Luckily, you know, I can continue. Maybe inspire some other young girls, that are 10 to come into this business."