Scarlett Johansson at Iron Man premiere

Carrying on their habit of wearing the same colour to press events (and fuelling speculation that the two actress don't get along) Scarlett Johansson and Gwyneth Paltrow both wore white Giorgio Armani outfits to the world premiere of Iron Man 2.

Scarlett Johansson, who plays the villain of the movie, black catsuit-clad Natalia Romanova (aka the Black Widow) joined Gwyneth and Robert Downey Jr on the red carpet, wearing a sculpted, Giorgio Armani Privé triple organza lamé cocktail dress (which was supposed to be moon-green, as you can see in the sketch above, but seems white to us...).