Naomi Watts doesn't know how to play Marilyn Monroe

London (ANI): Australian actress 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," the Daily Express 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.