Continuity mistake: When the two pigs are running to the brick house, there is no mat in front of the front door, but then when we see the wolf standing outside the house, a mat has appeared in front of the door. (00:05:45 - 00:06:20)
Continuity mistake: When the two pigs are running to the brick house, there is a doorstep in front of the front door, but it disappears in the next shot. (00:05:45)
Continuity mistake: When the two pigs run into the brick house, there is a small door at the top of the front door, which wasn't there previously. In the following shots from outside the house, this small door is missing, leaving an empty hole in the door. The hole is also shaped incorrectly. When the wolf pulls on the doorknob after trying to blow down the house, the small door appears in the hole mid-shot, then it's gone again two shots later, and the hole is now the correct square shape that it should be. (00:06:19)
Continuity mistake: When the two pigs run into the brick house, there is no chain hanging next to the door, but in the next shot, there is. (00:05:47)
Continuity mistake: When the two pigs hide from the wolf in the stick house, the door has a white knob with a backplate. When the wolf blows down the house, the backplate has vanished from the door. In the next shot, the backplate reappears, and the knob has changed to black. In the shot after that, it's back to a white knob with no backplate. (00:05:03 - 00:05:30)
Other mistake: When the wolf returns to the stick house dressed as a sheep, his tail falls to the ground; then it disappears mid-shot. (00:04:43)
Continuity mistake: When the wolf gets to the house made of sticks, the knob is missing from the door; then it reappears a moment later. Then, when the wolf blows down the house and knocks down the door, it is gone again. (00:03:58)
