Ambiguity is no stranger to the arthouse film. Over fifty years after a group of daytrippers never found their lost shipmate in Antonioni’s L’Avventura, the ambiguous ending still retains the power to frustrate, confuse, anger, and challenge viewers. Continued controversies over ambiguity in narrative films point to Hollywood’s enduring dominance over the notion that films must be coherent and contain closure. However, the convention of closure can be a maddening limitation for filmmakers who intend to ask questions with no easy answers, or pose problems with no clear solutions (assuming that such answers or solutions exist in the first place). But ambiguity can take on a variety of forms, and with different degrees of effectiveness. Sometimes a film’s ambiguous hole can be more fulfilling and thought-provoking than any convention of linear causality in its place, but at other points ambiguity can become a handicap, or a gap that simply feels like a gap. Here are a few films from the past year that engage in several modes of intended ambiguity.