At approximately the 24 minutes into the movie, Ethan is being shown the death of his sister and wife on the internet. The article misspells the word roughly as "rougly". However, at the 1:04 minute mark, when Ethan is thinking about that article, the word roughly is now correctly spelled.
Charlie (the dog) has a missing left eye. However, at 01:04;02, the shot appears showing Charlie with his left eye.