Ahahahahahahaha! What a nice idea to play up the contrast between the two in this picture.
I LOVED Brannagh as Lockhart, and this particular pic of him is just glorious. I especially like the way he ought to be concentrating on the shadowy Snape in front of him, but is, of course, distracted: "Your dungeon is a gloomy place? I hadn't noticed, my dear." No, of course you haven't noticed, Gildy, because it is illuminated by your awesomeness! ;)