At the top of the stairs, Meera turns to close the wood-slatted door, but the heavy latched door is at the top of the stairs. The wood slats are around the corner in the office.
Some viewers believe that if the video tape was damaged, putting it into another camcorder wouldn't have fixed it. However, it was the camcorder that was damaged when Oxbow slammed it against the wall - not the tape itself.
When Meera is secretly looking at Henry's building plans for their house, gauge is misspelled as "guage" in the specification "24 gauge flashing".
When Meera opens the filing cabinet in Henry's office for the first time, on the first file divider, the label has a spelling mistake in the word 'Records'.
The dog was said to have been barking like crazy in the office, but no dog sounds were heard until it jumped on the car door.
Correction: the father recorded the video tape after the first break-in, when the main characters were not home. Since this break-in happened off-camera, the dog barking like crazy is not a plot hole.
Correction: the father recorded the video tape after the first break-in, when the main characters were not home. Since this break-in happened off-camera, the dog barking like crazy is not a plot hole.