The Kid Who Would be King tells the story of Alex, a twelve-year-old British schoolboy whose everyday problems are dwarfed by his discovery of the mythical sword Excalibur.
Based on an original script by writer/director Joe Cornish (Attack the Block), The Kid Who Would be King started principal photography in London on September 25, 2017.
Angus Imrie (Kingdom) plays a young incarnation of the wizard Merlin, with Sir Patrick Stewart as the senior version.
Twentieth Century Fox will distribute the picture and Michael Ireland will oversee the project for the studio.