Now as you may know, Katniss, the main character in the book and film, was described as having "straight black hair" and "olive skin." It's a post-apocalyptic world, so she could be a mix of things, but some pictured a Native American. Blonde-haired, blue-eyed Jennifer Lawrence won the part and dyed her hair dark. But when it came to the casting of Rue, Thresh, and Cinna, many audience members did not understand why there were black actors playing those parts.