The NC-17 rating is seen as taboo, but it lets movies explore the darker parts of human life, like in the films Perfect Blue and Mysterious Skin.

From A Serbian Film to Dawn of the Dead, these are essential X and NC-17 rated horror movies viewers need to see.

Another year brings another NC-17 controversy at the movies. This time it’s for “Passages,” the acclaimed romance drama from Ira Sachs that earned strong reviews out of the Sundance Film ...