The long-awaited second feature of British comedian and filmmaker Joe Cornish following his debut “Attack the Block,” this new “Goonies”-esque adventure tale follows a young and utterly powerless British schoolboy (Louis Serkis) who finds his everyday problems dwarfed by his discovery of the mythical sword Excalibur. Soon, he and his friends must thwart a medieval villain named Morgana (Rebecca Ferguson) who is hell-bent on destroying the world. Patrick Stewart also stars as Merlin in the film and Cornish has been very selective and consistently good with his other work of late which makes anything he does worth seeing.