Why Shredder's Not in Teenage Mutant Ninja Turtles Mutant Mayhem

The ultimate TMNT villain isn't in the new movie, Mutant Mayhem, but he was in earlier versions. The film's director, Jeff Rowe, explained what he was doing and why he was taken out..
The film's director, Jeff Rowe, spoke to io9 about his new TMNT animated film, out August 2.

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