Change is never easy, even when the results are positive, and that’s never more true than when a young person reaches the awkward threshold of adulthood and embarks on an uncertain future by entering college. Told in epistolary fashion, “Dear Leo” thoughtfully addresses friendship, queerness, and the complicated rites of passage that make growing up so difficult to navigate for all of us. St. Louis native Emma Rapold directs this charming coming-of-age tale, which uses the letters exchanged with her middle-school cousin to tell the story of Annie Duncan as she graduates from high school and tentatively starts adult life during her freshman year of college.