Poster for Les Vampires (Feuillade, 1915-1916), the infamous serial starring Musidora that deeply annoyed French authorities because it showed all kinds of criminal acts. The Internet Archive has all the episodes— perfect for when you have 10 hours to spare.
(ETA: I should add that, despite the title, this serial is not about actual vampires but rather about a gang of bandits that call themselves Les vampires.)