An adult sex comedy that’s also the most amusingly unerotic film of the year, The Feeling That the Time for Doing Something Has Passed, which hits theaters April 26, treads into explicit terrain in order to chart the disaffection and confusion of a thirtysomething Brooklynite in search of direction, fulfillment, and companionship. Written and directed by star Joanna Arnow, this bracingly awkward indie—which played at last year’s Cannes, Toronto, and New York film festivals—is...