In January of 1991, producer/rapper and then-N.W.A. member Andre “Dr. Dre” Young attacked hip-hop journalist Denise “Dee” Barnes in a nightclub. If you hadn’t heard about the incident going into F. Gary Gray’s N.W.A. biopic Straight Outta Compton, which hits theaters in two weeks, you’d leave the theater none the wiser. It’s never mentioned.