Generate a photo based on some text: a grand Apple keynote event scene, with many people in the audience. The scene is dark with gorgeous lighting. The camera focuses on a very wide, curved main screen. The text has perspective consistent with the screen. Small silhouettes of people stand on the stage. The background is a purple-to-blue gradient, the white text has some gradient as well, and the whole thing should look like an on-site photograph with a high-end feel, in 16:9 aspect ratio.