Sorry dude, but I have to say that is quite possibly the worst movie poster of all time!!! It got panned when it came out.
Vader looks moronic, the unravelling of the cape just looks forced and awkward, and all the white "shading" that's supposed to create other images makes the whole thing appear smudged and faded...
😉 Best movie poster of all? Think you're alone on that one.
I've actually made my own version of it...