Shailene Woodley stuns in open back dress at 'Divergent' London premiere

Shailene Woodley showed off her toned figure in a revealing blue dress she wore to the Divergent premiere in London on Sunday.

The 22-year-old actress walked the event's red carpet in a floor-length backless Stella McCartney gown. She later posed for pictures alongside co-stars Theo James and Kate Winslet.

Woodley told Access Hollywood Friday that she was forced to have a phone for the promotion of the film.

"This month, I've had a cell phone because Lionsgate during press for Divergent has been like, 'We need to get a hold of you, here's a phone.' But, I don't have a personal one," she revealed, adding that she's also forgone her social media accounts.

"Getting rid of Instagram for me was huge [and] my phone in general. I got to know me again and I got to wake up and be like, 'What do I want to do today?' I don't have a device to be like, what should I do today? It was like, what do I want to do today?" she explained.

[Access Hollywood] [Divergent Indonesia]