The Charli XCX film is neither funny enough to be a mockumentary nor real enough to be a concert doc. The result is pure brand management. Photo: Courtesy of Sundance Institute Charli XCX ’s pop persona is such a delectable blend of sincerity and pastiche that the idea of a mockumentary around her life is a no-brainer. The Moment ’s opening salvo, a montage of news reports talking about the runaway success of the singer’s 2024 album Brat and the attendant pandemonium of “Brat Summer” coverage,