 As murder mysteries go, Glass Onion, the sequel to Rian Johnsons brilliant Knives Out, is pretty damn cannibalistic. Equal parts homage and piss-take, the movie both satirises and utilises the tropes of the genre to craft something at once immersive and irreverent. Even more artful is the directors use of an equally cannibalistic track by ... How Glass Onion uses a classic Beatles song to clue its... 