Zack Snyder has always been a filmmaker with R-rated sensibilities, and if you want to split hairs, then just two of his seven movies to date are what you would call family-friendly outings. The animated Legend of the Guardians: The Owls of Ga'Hoole is the only one of his directorial efforts rated PG, while Man of Steel was slapped with a PG-13 for 'intense sequences of sci-fi violence, action and destruction, and for some language.'