Amanda Seyfried celebrates her birthday with a 1920"s dress and super-sized cake

Turning 26 like it”s 1926: Amanda Seyfried celebrates her birthday with a Twenties-style dress and super-sized cake

Amanda Seyfried channeled the 1920″s as she attended a party in New York earlier this week.

The Mean Girls actress showed her glamorous side as she partied with other guests in her vintage style dress.

Amanda was in The Big Apple to unveil the Cl de Peau Beaut’s Spring 2012 Collection.

Speakeasy: Amanda Seyfried celebrates her birthday at The Norwood Club

Speakeasy: Amanda Seyfried celebrates her birthday at The Norwood Club

The 26-year-old wore an Alberta Ferretti drop-waist design to the party on Tuesday night and was the centre of attention.

Her white sheer chiffon beaded dress stole the show and was matched with a pair of silver heels and a thin silver necklace.

Amanda, who turned 26 on Saturday, was also presented with a huge birthday cake at The Norwood Club.

Many happy returns: Amanda seemed overwhelmed by her large birthday cake

Many happy returns: Amanda seemed overwhelmed by her large birthday cake

The In Time actress is set to play pornography star Linda Lovelace in her next movie and recently spoke about her preparations for the role.

She told ABCnews.com at the party: “It’s going to be really hard and kind of terrifying at the same time.”

She added: “I do have some liberties there but I am playing someone that existed in history and had quite an established reputation for something very extreme.”

Make a wish: The Mean Girls actress blows out her candles on the huge cake

Make a wish: The Mean Girls actress blows out her candles on the huge cake

Troubled star Lindsay Lohan was originally slated to play Linda Lovelace but was reportedly sacked from the role after her ongoing law problems.

Linda Lovelace was an American pornographic actress who was most famous for her performance in the enormously successful 1972 hardcore porn film Deep Throat.

Amanda said of Lovelace: “She was such a different person than what we expect. It’s a good story to tell, and I’m really, really excited about it.”

The birthday girl: Amanda poses with her extra big birthday cake

The birthday girl: Amanda poses with her extra big birthday cake