Continuity mistake: In the final scene, the plastic bag moves from being perpendicular to the laptop to parallel and close to it, between shots.
Continuity mistake: When frozen Mike crouches towards the laptop he takes the blanket off of him. In the next angle the blanket is again on his back.
Continuity mistake: After knocking down the stuff from the fireplace, Mike is leaning against a wall, next to a knocked down lamp. The position of the lamps keeps changing all the time depending on the angle.
Continuity mistake: When Mike is cleaning his injured hand, the faucet bursts and blood splatters all over the sink. Depending on the angle the sink appears dirty or spotless.
Continuity mistake: When Mike arrives at the Dolphin a chubby man with a blue shirt passing by the main door disappears between shots.
Continuity mistake: The first time Mike enters the bath room, he moves the toilet paper and a bit of it sticks up close to the wall. A second later, from a different angle, watch the right side of the screen and the bit of paper is gone.
Continuity mistake: When rain starts to pour in the frozen room, Mike's positions swaps from next to the television to 3 meters to the right in half a second.
Continuity mistake: When Mike falls from the ceiling and breaks the table, the damages differ dramatically from the first shot to the next one half a second later.
Continuity mistake: When Mike falls from the air vent, the rug appears clean and brilliant. Half a second later, it is dusty and pale.
Continuity mistake: Before rain falls in the frozen room, Mike shields himself with his arm. In that brief moment the stains on the wall disappear.
Continuity mistake: When he enters the room he flips up the first 2 lights. After he shuts the door the 1st and 3rd switch are up and the 2nd is down.
Continuity mistake: When Mike enters "The Weeping Beach Inns" attic room and sits on the bed it is unmade, in the next scene is made then unmade once again.
Chosen answer: He sums up the individual numbers: 1+4+0+8 = 13.
Twotall