Luis R. Vera’s FiestaPatria involves more sex than any family reunion ever should, and just enough political in-fighting. Chilean Independence Day here doubles as an engagement party for young lovers Macarena (Adela Secall) and Alvaro (Tiago Correa), and provides their politically mismatched elders a deliciously inopportune moment to dredge up the ghosts of Pinochet’s past. Throughout the festivities, estranged relatives from both familias emerge to join in the fray of step-family cuckolding, cocaine-fueled fisticuffs, and coup d’état tête-à-têtes. Two outliers from Alvaro’s family—philosophy-studying, motorcycle-driving cousin Cristian and caddish leftist uncle Cesar—threaten to upset Macarena and mother Isabel’s respective marriages: Cristian with his wind-swept hair, and Cesar with an unwelcome nudge into Isabel’s revolutionary college past. The film’s farcical setup manages to extract smart laughs from Macarena and Alvaro’s unraveling romance and their elders’ military/Marxist divide. But when it comes time to reveal family secrets that hark back to the junta, the huge ensemble’s high jinks overload the story’s serious turn.