TheForce.net is featuring an image from a UK paper. There are several shots of Darth Vader from Star Wars Episode III.
As this is a spoiler, I will make it an extended entry in order for you to get the link.
What you will see, should you choose to click on the link, are two pictures as well as some plot details of how Anakin Skywalker becomes Darth Vader.
Tip of the hat to Erik Burnham.