Sunday night’s episode of Westworld was entitled “Genre,” named after a fictional drug that transports the user into a series of film genres, including noir, rom-com, and war, as denoted to viewers by lighting and soundtrack. Caleb (Aaron Paul) finds this out the hard way after a kidnapped Liam Dempsey (John Gallagher Jr.) stabs him with the drug in the neck, during which Caleb has to experience a high-speed car chase and machine-gun shoot-out while tripping his balls off to the sound of “Flight of the Valkyries,” an obvious nod to Apocalypse Now.