Actress Amanda Seyfried stunned at the L.A. premiere of her upcoming film, Lovelace. Seyfriend plays iconic porn star Linda Lovelace in the Rob Epstein, Jeffrey Friedman directed biography.

Flashing a little side boob in her sexy retro halter dress, Seyfried opted to wear her hair up to add more sex appeal to her red-carpet look,E! News reports.

The Big Love actress discussed playing Lovelace, who before her death became a strong anti-pornography advocate. She tells E! "There was the added challenge of the responsibility of playing someone who really existed and reiterating her story and her feelings on her life, because people just pigeon-holed her and she was defined by one thing."

Seyfried stars alongside Peter Sarsgaard, Sharon Stone, Juno Temple, Chris Noth and Hank Azaria.

The 27-year-old actress opened up about the difficulties of letting go of the iconic character back in January saying, “I had a hard time letting go of Linda at the end of the movie. I had a really intense time with (co-star) Peter Sarsgaard. I think we both had a hard time letting go because we went to these places.”

Lovelace hits theaters Friday, August 9.

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