Pet Sematary is one of Stephen King's most beloved horror tales, and it almost never came to be. Because of a combination of "too close to home" story elements and some rather prickly contract negotiations, in an alternate universe, Pet Sematary could still be locked up in one of King's desk drawers at this point. Instead, the 1983 novel was adapted as a TV movie in 1989 and is due to arrive on the big screen this April through Paramount Pictures. In a chat with EW, King talked about the hype surrounding Pet Sematary, both the original novel …