A body and an island become sites of resistance in Glorimar Marrero Sánchez’s The Fishbowl, a fitfully incendiary, entrancing portrait of a woman engaged in a two-front war. Her name’s Noelia (Isel Rodríguez), a thirty-something Puerto Rican artist living in San Juan with her partner Jorge (Maximiliano Rivas). At the outset we’re told Noelia’s had cancer, and now that the illness has returned she refuses treatment to seek refuge in her native island of Vieques, a 40-minute ferry ride from the capital. What we aren’t told, but the film persuasively suggests, is that her disease might have been caused by the toxic emissions left by six decades’ worth of American weapons testing on her home turf. Written by Marrero Sánchez, The Fishbowl mines an unsealed wound in the US territory’s history; as The Atlantic grimly revealed in a 2016 exposé, cancer rates in Vieques are...