That article (tweets, tumblr, etc) are just another reminder that racism is still alive and well in this country. I take comfort though in the fact that apparently they either a. can't read or b. are extremely unobservant because Rue is described as having dark skin and hair. I actually imagined her a little darker skinned because she worked outside, but I love the actress that plays her. Honestly, how could you not?
As for Thresh, I was apparently extremely unobservant when I read that Rue and Thresh shared similar physical characteristics and imagined him as Fulton Reed from the Mighty Ducks:
I know that makes no sense now, I guys I just saw their personalities as similar since they were both big and were seen as bullies at first but were good guys in the end.
I didn't have a picture in my head for Cinna, not really, just kind of a face and gold eyeliner. They don't really give many physical descriptors of him in the book, which I think is why I couldn't imagine him. Lenny Kravitz was beyond perfect though. He really encapsulated everything that I think Cinna represented. Anyone who doesn't think so solely because of his race is just an ignorant bigot. I do feel sorry though that they have to deal with this nonsense, it can't be easy.