But as far as black/white actors, you can replace an originally white actor with a black one, but not the other way around. That's a PC sin of the highest order.
White actor playing a black man? Why, look no further than Sir Laurence Olivier playing a Moor in Othello:
Now, here is a cinematic classic - Mickey Rooney playing a bucktoothed and blind Japanese guy in "Breakfast at Tiffany's"
