The sentiment was clear among dudes in vintage green graphic T-shirts emerging from the Teenage Mutant Ninja Turtles screening: harrumphing disappointment. "Piece of shit," was uttered more than once. Heads shook somberly. A young woman in a skimpy, Turtle-themed cocktail dress seemed downtrodden. Which, frankly, surprised me. The Teenage Mutant Ninja Turtles reboot is not good, per se, but it's no piece of shit, either. And it's certainly no worse than the embarrassing cash-ins that have been carried out under the TMNT banner since the world's most fearsome fighting team emerged from the sewers three decades ago. by Dirk VanderHart