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OTRC: Amanda Seyfried of 'Red Riding Hood' on acting with a fake wolf

Amanda Seyfried talks to OnTheRedCarpet.com and other news outlets at the Hollywood premiere of 'Red Riding Hood.' (OTRC)

Amanda Seyfried, who stars in the new thriller "Red Riding Hood," says it was "really difficult" filming with a pretend wolf, since the wolf was computer-generated in post-production.

"They weren't there when I had to pretend I was talking to this imaginary piece of wood, sorry, an imaginary wolf that was a piece of wood for me," told OnTheRedCarpet.com and other news outlets at the film's premiere. "That was like them sot grueling two days of the shoot because I was hyperventilating and I had to keep this level of fear for two days in 80 different angles. There was at one point a big, Styrofoam wolf called Stuffy who didn't talk back... it was just really difficult."

"Red Riding Hood" is based on the fairy tale by the Brothers Grimm and is set for release on Friday, March 11. Seyfried plays Valerie, a young girl who lives in a medieval village that is haunted by a werewolf, who can take on a human form.

In the film, Seyfried's character falls in love with an orphaned woodcutter, played by Shiloh Fernandez, and wants to run away with him to avoid an arranged marriage. However, their plan is stalled when her older sister turns up dead and Valerie discovers she has a unique connection to the werewolf.

"Red Riding Hood" is co-produced by actor Leonardo DiCaprio and directed by Catherine Hardwicke, who helmed the first "Twilight" film. The movie also stars Virginia Madsen, Billy Burke and Gary Oldman.

Seyfried admit at Los Angeles premiere of the movie that the original story "scared the crap" out of her.

"It's one of the most universally known fairytales, I mean it's a fairy tale for a reason," Seyfried said. "I don't know when I was told or who told me, but it was just something that really exists as a legend, a cautionary tale in my mind. It scared the crap out of me."

Seyfried began her on-screen career around 2000, starring in the soap operas "As the World Turns" and "All My Children." Her breakout role came in the form of Karen, a ditzy high school clique member with a heart of gold, in the teen comedy movie "Mean Girls," which starred Lindsay Lohan.

Seyfried later went on to star in television shows such as "Veronica Mars" and "Big Love" and appeared in the movies "Mamma Mia!" and "Letters to Juliet." She recently shot the science fiction film "Now" with Justin Timberlake and Olivia Wilde. The movie hits theaters in October.

"Red Riding Hood" was released on March 11, 2011. Watch the trailer below.

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