Actress Naomi Watts (L) acts on the set of the new feature film "Caught in Flight" in Opatija July 3, 2012. Watts will play Britain's Princess Diana in the film about the last two years of her glamorous life that ended in tragedy, Britain's Ecosse Films said on February 9. Picture taken July 3, 2012. REUTERS/Antonio Bronic (CROATIA - Tags: ENTERTAINMENT)