The Next Big Star: Marla Mindelle
photo: Broadway.comThe criminally underrated musical adaptation of Sister Act (by Alan Menken and Douglas Carter Beane, at the Broadway Theatre) is notable for many reasons, including a breakout performance by newcomer Patina Miller and the always-appreciated presence of Tony winner Victoria Clark. The show's real star turn, however, belongs to Marla Mindelle, as the shy novice nun who, with the help of Deloris Van C…