When Rachel Zegler stepped onto the red carpet at the world premiere of Disney's "Snow White" on Saturday afternoon in Hollywood, the newest Disney princess was greeted by a smaller-than-usual assembly of photographers to capture her light pink ballgown and dazzling diamonds.

The live-action version of the classic fairy-tale animation sounded like a surefire hit. But even before it's reached cinemas, the response to it has been loud and often hostile.