Thanks, Brad! I'm not 100%, but it could have something to do with these films both being released by Fox, not Corman's New World Pictures. Or it could be because they just aren't up to the level of the "Corman Classics" banner like Crazy Mama / The Lady in Red or Not of this Earth, etc. Maybe a bit of both. The set is still bundled like the other entrants in the series though, right down to the bonus poster art and "drive in" menu.