Continuity mistake: When John falls down after reading the newspaper clippings in front of the Shell Beach billboard, one of the Strangers can be seen approaching him on the far left of the screen, in front of a window at the top of some stairs. But in the next shot, the Stranger is suddenly further down the stairs.
Continuity mistake: At the part when Mr. Sleep scratches his knife against the wall and Murdoch falls out of the doorway. The door is on the right side, but when they show the downward shot, it is on the other side. (01:00:00)