Aside from the numerous versions of the film, I have also been aware that there is a Japanese cut of the film that exists somewhere. It's really just the theatrical version of the film, but every time there is violence on the screen, the picture goes still, and the music keeps playing, then the picture resumes after the violence ends. It also apparently had an introduction by Romero himself. I tried contacting a guy who supposedly had a copy of this version months ago, but I never received an answer back.
I also forgot to mention that the other reason why this stands apart from all the other releases is because it features a sort of prologue, which explains that the zombies were here on Earth, and consisted of white words placed over a black background, while being accompanied by clicking noises from a typewriter.