The Dark Tower: 15 Easter Eggs You Probably Missed
2. Stand By Me
When Jake arrives at that House on Dutch Hill, he finds a sign on the door reading 'Attack Dog. Keep Out!'
Since there's a Cujo reference elsewhere in the movie, there's a good chance this is a nod to the coming-of-age classic Stand By Me.
In the 1986 movie, Milo Pressman's dog Chopper has a legendary reputation for 'sicking' intruders at the local junkyard and biting them in intimate areas.
Although Jake didn't encounter a crotch-biting canine behind the door, he did find a demon guarding the portal to Mid-World.