Ahead of its April 18 release at New York’s IFC Center, the Harvard Sensory Ethnography Lab’s latest outing, Manakamana, now has a proper trailer. Directed by Stephanie Spray and Pacho Velez, the documentary captures several 10-minute tram rides to the titular Nepalese shrine through a fixed camera, mounted before the passengers. Spray spoke about the extended metaphor in a wonderful profile on the Lab in Boston Magazine. In the article, the reticent founder Lucian Castaing-Taylor also talks his plans to make a narrative-doc hybrid about sex and cannibalism. If it looks anything like Leviathan, it should be interesting.