If, during a game of Trivial Pursuit, you're asked to name a Broadway Musical in which one of the characters, a racist, turns black overnight, the chances are you'll answer Finian's Rainbow, the hit show of 1947, so, yes, it HAS been done before but NOT with Valerie Lemercier who is a Great actress, a Great writer and a Great director. This time around she is called upon only to act and she acts up a storm as the prejudiced career woman just getting to the top of her profession when, inexplicably, she grows bronzer and bronzer, gets fired and can only find a job in an outfit that hires primarily Black help. The twist is not long in coming when she falls heavily for a genuine Black colleague before just as inexplicably reverting to her own skin tone. Those are the bare bones but the flesh that Lemercier grafts onto them have to be seen to be believed. Outstanding.