Some movies are certainly scarier than others, but it all depends on what a viewer might personally find scary. To some, a clown might be a delightfully impish entertainer, while others may consider it a terrifying monster that needs to get the heck out of the circus.

George A. Romero was responsible for hit films like Night of the Living Dead (1968), Dawn of the Dead (1978), and Day of the Dead (1985). But while George Romero may be considered the father of zombie horror, the director revealed that he didn't actually believe that any of his films were particularly frightening, save for one.

"I think it's the only creepy movie I ever made," said Romero of Night of the Living Dead during an interview with the St. Louis Post-Dispatch. "I don't think the others were scary. They were more comic book romps."

Romero also revealed that he was his own worst critic. While many of us rewatch films like Night of the Living Dead and Dawn of the Dead in awe, Romero was only able to see his flaws.

"But still, I can see the mistakes, the bad craftsmanship," said the director. "I didn't know what I was doing. It wasn't until the last three or four films that I finally felt in control of the medium."

Surprisingly enough, while plenty of cinephiles love to list Night of the Living Dead as one of their favorite films, Romero's favorite was the third film in the series, Day of the Dead.

"It's probably my favorite one, and so much of that is probably the experience of making it," said Romero of the 1985 film. "It was a great cast and crew. I like the subtleties of it all, the mistrust in institutions and government and the military and of each other."