If you have yet to view the trailer for Nicolas Cage’s upcoming horror film Mandy (2018), please do so at your earliest convenience. This lurid, two and a half minute pastiche of color and chainsaws explodes with the force of a thousand metal album covers, yet retains an ineffable dreaminess. Mandy marks the second outing of writer/director Panos Cosmatos, offering an occasion to revisit his first film, Beyond the Black Rainbow (2010).