Team Swallow, Gwendoline Christie.
The Game of Thrones fan fave has been tapped for a role in Swallows & Amazons, the story of four 1929 children holidaying with their mother in the Lake District that go sailing to a nearby island on their boat, the Swallow. They set up camp for a few days, but soon discover that the island belongs to a couple of girls that arrived their on their boat, the Amazon.
A rivalry ensues.
Oh...the adventures of childhood.