NAOMI WATTS DAUNTED OVER MARILYN MONROE ROLE

Naomi Watts is struggling with her upcoming role as Marilyn Monroe - because she's unsure how to play the iconic sex symbol.

The actress portrays the Some Like It Hot siren in new biopic Blonde, but confesses she can't figure out how to tackle the role - because no one really knew the real Monroe.

Naomi Watts says, "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.

"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."