Naomi Watts 'scared' to play Monroe

Naomi Watts has revealed that she's apprehensive about playing Marilyn Monroe in a forthcoming movie biopic.

The actress explained that she feels pressure to portray the icon in the right way because she is so well known.

Bang Showbiz quotes her as saying: "It's a huge pressure. We all feel we know her. I'm very, very scared about that."

Watts - who starred in last year's Fair Game - also admitted that she was nervous playing real-life CIA agent Valerie Plame, who lost her cover in the White House when her husband wrote an anti-George Bush editorial piece.

Asked about her feelings on the project, she replied: "Daunting. I'm a lot more fragile than she is. To me, she seems almost invincible."