While I give my congrats to George Lucas and wish him all the best..
There is still most certainly a difference in a reaction when a White Male marries an 'other' female compared to when a black male marries an 'other' female. There following is more of an average attitude in my opinion...
For white males the reaction is usually, "Congrats, you deserve every bit of that happiness!" Other commentary inbetween is with an underline tone of: it is sincere, unquestionable pursuit of a beautiful female with no other strings attached, he is championed for getting the exotic and the different, that is all.
For black males "Congrats, you deserve every bit of that happiness!" Other commentary inbetween is with an underline tone of: Brainwashed by the media, wouldn't expect anything different from him (if he is successful in fame and/or fortune), relationship is built on the female's superficial pursuit of his wealth. And depending on looks, if she isn't all that stunning(in their opinion with a sudden inflation of beauty standards then it is "he's a black male, they take the ones we/they don't want"
The more straight up hateful stuff, mostly on the internet, comes from some butthurt (I'd imagine mostly non-black) guys that did their college internship in the showers of the OZ prison, who rather than go out and prove why they are so "superior" or more deserving; instead waste time tearing down someone they don't know and who will never never ever care about their existence and will always probably remain more successful then they.
Then other such comments usually come from some black females who suffer from that wincing syndrome that Jill Scott suffers from whenever she sees a black male with a white female and who thinks just because you share the same skin tone, she and all black women alike are entitled to have the option to spend the rest of their life with you.
Overall, I would say attitudes as a whole are improving for bm/wf relationships. Most folks that have a genuine problem with such unions have only a few options. Take refuge on the internet or keep their opinion to themselves.