For those who don't know, Nosferatu is one of the first vampire movies, and it came out in 1922. A lot of techniques used in this movie were used in others. Notice how when he comes through the door, the back light on him gives him a mysterious yet powerful look. Also, during the next shot when the director used the vampire's shadow, it came off really well. Again, by not showing his face or any other features beside his tall stature, he remains this creepy and mysterious figure.