Swallows and Amazons

Four children (the Swallows) on holiday in the Lake District sail on their own to an island and start a war with rival children (the Amazons). In the meantime, a mysterious man on a houseboat accuses them of a crime they did not commit.

Swallows and Amazons is a 2017 drama adventure movie directed by Philippa Lowthorpe, starring Kelly Macdonald, Dane Hughes, Bobby McCulloch. It holds an IMDb rating of 6.2/10 from 3,847 votes and runs 1h 36m.