Arthur the King is a 2024 American adventure film directed by Simon Cellan Jones, written by Michael Brandt, and starring Mark Wahlberg, Simu Liu, and Juliet Rylance. It is based on a true event Arthur - The Dog Who Crossed the Jungle to Find a Home by Mikael Lindnord. In the film, the captain of an adventure racing team befriends a wounded stray dog named Arthur, who accompanies the team on a grueling 435-mile (700-km) endurance race through the Dominican Republic.