Producers Of '50 Shades' Porn Parody Argue That The Work Is In The Public Domain... But It's Not

Techdirt: Back when Universal Studios sued the makers of a "porn parody" of the insanely popular book 50 Shades of Grey, we were among those who pointed out that the book itself was really originally a fan fiction work based on the Twilight books/movie series, and that it seemed a bit hypocritical to not allow other derivative works. I don't know if it was because of us calling out this fact, but the producers, Smash Pictures, are using that exact point in their defense... but then are bizarrely arguing that this makes the work in the public domain.