With an endearing black comedy set in the provinces, which adopts the visual style of a ’60s Western, prolific writer-director Teemu Nikki salutes his country’s (and his family’s) tradition of sahti-making. “ 100 Liters of Gold ” follows two dysfunctional middle-aged sisters, third-generation makers of the strong farmhouse ale. In their village of Sysmä, sahti is a must to mark births, weddings and funerals, as well as almost everything in between. Touching on issues such as alcoholism and