So I have a poster that I got as a gift many year ago as a child. As of course as a child I didn't see the value in keeping it in good condition, so its pretty well shot.
However, I am curious to see if there's any information about it out there. here are the details:
Superman III movie poster. Double sided; the front is in color with the movie title: Sup from an angle looking at his front-right side (he's flying). The back is black and white of a different pose: Clark opening his shirt revealing the S logo. Neither of these are the typical pictures of Sup flying out of the grand Canyon with Richard Pryor.
I'll see if I can get a decent picture of it if anybody is curious.