Flux Gourmet, review: highbrow Jackass, led by a sensual Gwendoline Christie

• Welcome to the Sonic Catering Institute – a forum for microphones to be plunged into bubbling fat, trips to the supermarket mimed, and a live colonoscopy projected as performance art. The extravagantly bizarre Flux Gourmet, deranged and deliberately pretentious in ways only Peter Strickland would dare try these days, is the British filmmaker’s closest thing yet to a pure comedy, and certainly thwarts any expectation of beard-stroking self-seriousness from minute one.