Continuity mistake: Ben, Richie and Beverly go to the movies and after that they go down to the Barrens, where they later meet Bill and a boy named Bradley. In chapter 9, section 5, page 433 in my edition, Beverly meets Eddie, Ben and Bradley. Eddie asks about the movies she saw with Ben and Richie the day before, while Beverly recalls Bradley from having met him a week ago with Bill in the Barrens. So has it been a week or just one night?
Continuity mistake: At the reunion at the Jade of the Orient Mike shows the others scars on his chest that the werewolf gave him. However later when their venture into the house at Neibolt Street is told, and the werewolf comes for them, it never touches Mike at all.