According to Wikipedia, Blacula was the first horror film to receive a Saturn Award. It's also the first time an African-American actor (William Marshall) appeared on screen as a vampire. Marshall also was the King of Cartoons for Pee Wee Herman's Playhouse. Of note, too, is how his sympathetic but demonic character mirrored Dark Shadows' Barnabas Collin's similar predicament. Pressbooks from the 1970s often printed ads on one side, leaving a blank page. That's why some page numbers are missing. An insert flyer appears after the pressbook.
(See the Scream Blacula Scream pressbook)