I love the folder-type double bill pressbooks with separate inserts for each movie (or campaign manuals as they were called, too). Here's one from American International Pictures touting a double bill of The Amazing Colossal Man and The Cat Girl. I have The Cat Girl waiting for me–on my DVR–courtesy of TCM. I don't think I ever caught that one. But who hasn't seen The Amazing Colossal Man?
love the cat girl ad posters too.. now surely worth plenty..