Naomi Watts doesn`t know how to play Marilyn Monroe in biopic

Updated: Oct 19, 2010, 17:37 PM IST

London: Naomi Watts has admitted being daunted by the prospect of playing the sexy Marilyn Monroe in the new movie `Blonde.`

The 42-year-old actress is set to play the role of Monroe in a biopic and isn`t sure where to start.

"I don`t have a plan yet on how to do it, it`s going to be a huge undertaking because everyone obviously has their own idea about who she was," a news daily quoted Watts, as saying.

"It`s a high-pressure thing to take on because of how iconic she was.

"I don`t know how I`ll go about it," added Watts.