london uk premiere the impossible bfi imax red carpet Naomi Watts Spread Pictures

Naomi Watts has a gorgeous back, and the blonde beauty was proud to show it off at the UK premiere of The Impossible in London, England.

Watts strutted her sexy stuff on the red carpet in a black Tom Ford gown with voluminous draping sleeves.

She stars opposite Ewan McGregor in the flick which is set during the 2004 Thailand tsunami. The Impossible hits theaters next year.