GRAND RAPIDS, Mich. (WOTV) Get ready to see Leonardo, Donatello, Michelangelo, and Raphael in a whole new way! The Teenage Mutant Ninja Turtles are back on the big screen. The action-packed movie opens at Celebration! Cinema on August 8. The film is directed by Michael Bay, who also directed the Transformers movies. TMNT is rated PG-13 and has a lot of heart-pounding action, so do some research to see if it’s appropriate for your family members.