This white gown and coolish lip aren't doing Warm Spring Amy Adams any favors. Everything that makes her beautifully radiant is canceled out by the stark white. No wonder she looks uncomfortable.
Here she is, delighting in all the light, clear warmth that nature gave her. (I heard she's not a natural redhead. It's a testament to her Warm Springiness that she wears the color convincingly.)
Cameron Diaz probably is a natural brunette, as most Springs are. But this color is too deep and too neutral. Her stylist may think the color makes Cameron's blue eyes pop, but they're popping out of a disappearing face. The black and gold add to the harsh effect.