Watts: My kids don't understand my work

Naomi Watts believes total honesty is the key to a successful relationship.

The 42-year-old actress – who has sons Sacha, three, and Kai, two, with long-term partner Liev Schreiber - plays real-life former undercover CIA agent Valerie Plame in new movie ‘Fair Game’ and admits she would struggle to live her life if she had to be as secretive as her character.