When Bruce first checks in Henry near the beginning of the movie, he writes Henry's name in green (at around 4 minutes) following Friday's name inscribed in a heart. Later when Bernie is reading from the check-in book, Henry's name is in red (at around 27 minutes) and follows Cooper.
At the party, a drink is spilled only down the front of Andi's dress (at around 01:02:00). When she returns to the hotel, the stain is all over the back and the front of her dress (at around 01:06:00).
After taking dogs from an Animal Control truck, Mark, Andi, Bruce, Dave and Heather are shown (at around 48:41) in the alley by the hotel walking abreast toward the camera with dogs in their arms and on leashes. There are 8 cuts (9 shots) from 48:41 to 48:52 with many changes the specific dog(s) each kid controls and with Mark switching from the left side of the screen to the right and then back.