A new 3D trailer for Teenage Mutant Ninja Turtles has been released online. The Michael Bay reboot of the Turtles movie franchise stars Megan Fox as April O'Neil, Will Arnett as Vernon Fenwick, and William Fichtner as The Shredder. Johnny Knoxville voices Leonardo, and Tony Shalhoub will voice Splinter. In Teenage Mutant Ninja Turtles, from their home in the storm sewers of Manhattan, four Ninjitsu-trained turtles, Leonardo, Raphael, Michelangelo and Donatello and their sensei, Master Splinter, battle evil. Teenage Mutant Ninja Turtles comes to theaters August 8.