Laserblast Pressbook Insert
Not completely sure, but since this fell out of my 4 page black and white pressbook for Laserblast, while I was curating (a fancy term that really means "making room for more stuff") my pressbook collection, I'll say–for now–that it's an insert sheet to the pressbook. Printed on high-quality glossy letter-sized paper, it shows this intense graphic on one side and movie scenes on the other. I mention the black and white pressbook because I believe there's actually a color version whose cover is this action-packed graphic. The pressbook I have is only filled with ad mats, so it, too, may be an insert to the color pressbook. Isnt' curating fun?