I'm not experienced enough, or certain enough of my acting on the screen to say to a director, "You are wrong, I am right. I will only do it this way." I could never feel that, I wish I could be absolutely certain. But on the stage, it's different. I know where I am on the stage.
Ian Mckellen2D looks so flat. Well, it is, of course, it's flat. But 3D isn't. And for an adventure story that takes you into a long-distant, fictional world, it's ideal, I think.
Ian Mckellen