Cinema Bytes Movie Reviews: There's no denying that Melissa McCarthy's star power is enormously high at the point in her career. With her breakout role in "Bridesmaids" followed by commercially successful films such as "Identify Thief" and "The Heat," there's no question that audiences love seeing her even though she's never really developed her characters. "Tammy" marks her big screen writing debut, a screenplay she wrote with her husband - and the film's director - Ben Falcone. The problem here is that "Tammy" shows Melissa McCarthy doing what Melissa McCarthy has done before. She has yet to step out of her comfort zone and try a different character.