Lisa Leeman, director of “One Lucky Elephant,” a visually captivating documentary recently featured at the Cleveland International Film Festival (CIFF), feels honored to be part of such an important project. A decade in the making, “One Lucky Elephant,” per Leeman, focuses on the “father and daughter interspecies love story” between David Balding, a colorful and passionate circus producer and Flora, his beloved, and often stubborn, elephant.