Jennifer Lawrence takes the plunge for 'Serena'

Jennifer Lawrence attends the premiere for 'Serena' during the 58th BFI London Film Festival at Vue West End. Pic: Getty Images

Clare Stewart, Jennifer Lawrence and Susanne Bier Pic: Getty Images

Pic: Getty Images

Pic: Getty Images

Pic: Getty Images

Ben Cosgrove, David Dencik, Ana Ularu, Jennifer Lawrence, Susanne Bier, Toby Jones and Christopher Kyle attend the premiere for 'Serena' during the 58th BFI London Film Festival at Vue West End. Pic: Getty Images