Tom is wearing the seahorse necklace before she finds it a few scenes later.
The rabbit Tom finds, Chainsaw, initially has a white face, but later it is a rabbit with half black and white face.
In the Washington cabin, Will is planning a route to town and says "Follow the creek, across the ridge". Will would be aware that creeks cannot cross ridges because one side would be uphill. What Will says can easily be interpreted as: "Follow the creek upstream until you cross the ridge" which would be meaningful.
Catering Assistant is misspelled "Assitant" in the end credit roll.
Will places the analog TV set in his closet, and there is a dish antenna on the house's roof, showing it worked, putting the time at before 2009. While Will and Tom are getting a ride, the truck driver states that marijuana is legal, which was not true in Oregon until 2015.
In the scene when Tom leaves the cabin to search for her father, a crew member can be seen moving behind the tree to her left just before the scene ends.
In the last scene of the movie, after Tom leaves her father, you can see a branch being moved by the cameraman during the close up on her.
The chessboard is set up incorrectly. Chessboards should have a white square at the bottom right (from each player's perspective).