Continuity mistake: When Annie Wilkes is shaving Paul Sheldon, when she is almost done she stops shaving and talks to him about something briefly. Before she stops talking there is still some shaving cream under his nose. Then when the camera goes back to Sheldon, after she's done talking, there is no shaving cream under his nose.
Continuity mistake: Buster parks his car outside Annie's house and is then shot inside her home. Then in a following wideshot of Annie's house, the car has vanished...
Continuity mistake: In the first scene, where Paul just finishes his book, the typewriter he is on seems to change from a big, old typewriter to a newer, small electric one.
Continuity mistake: When Annie shows Paul her gun, she says "I might put bullets in it," then leaves the room. It's pouring with rain, but when Annie steps out the front door, you can see her hair is already wet before being outside.
Continuity mistake: When Annie lifts Paul off the floor and lays him back into the bed, there is initially no tape over the brace on Paul's left knee. In the next shot, which is somewhat bird's eye view, there are three pieces of white tape over the brace, then there are none again when she finishes lying him down.
Continuity mistake: Paul is eating in bed and by the plate are some pain killers. The position of the pain killers in relation to the plate changes between a few shots.
Continuity mistake: Shots of the roof show two different amounts of snow and it alternates between the two for the whole movie.
Continuity mistake: Just after Annie burns Paul's book, she gives him his 2 pills. When she hands them to him, he looks at them close up to the camera - check out his thumbnails. They look very short and bitten down to the core. But if you check out scenes just after, or even just before they look longer and normal.
Continuity mistake: During the rainstorm, it shows snow on the roof of the house. The next shot of the rainstorm still has the same amount of snow on the roof - some should have been washed away.
Continuity mistake: When Paul is dining with his agent at the end, after he puts his book down, he picks up a menu. But when the camera angle changes to face him, his hand is empty.
Continuity mistake: When Annie is shaving Paul, she doesn't shave his chin, but, a second later, his chin is shaved.
Continuity mistake: When Paul complains that the paper smudges, Paul types seven letters on a piece of paper to prove it. In the next scene, we see the word he typed was "smudge" which only has six letters.
Answer: According to the book, she goes to what she calls her "laughing place", itself a reference to the Disney movie "Song of the South", in which Brer Rabbit sings about having a "laughing place" where he goes when he's feeling blue, to cheer himself up. We can presume Annie has some cabin or clearing in the woods where she has made her own "laughing place."