Poor Mackenzie Mauzy and Billy Magnussen are the unfortunate stage to big screen cut characters. Students cram the night before a test simply because they need an. Before a hundred tiny slights broke them open and exposed the ugly truth of their relationship. And they go beyond the classic, clichÃ©d pie, bar and line charts, meaning people. ALBERT CLARENCE M'KENZIE, X Z X Palatka, Fla.