Near the beginning of the movie Sue (Jennifer Aniston) is sitting in her hotel room on the bed looking down at the email screen on her laptop. The left-hand side of the screen shows there are 4 unread emails but there are actually 8 unread emails. The top right-hand corner of the screen says 'Viewing messages: 1 to 8 (8 total)' but there are actually 15 messages displayed.
In the hotelroom is a wine offered as hotel-present. The bottle of white wine (which is drunk without any cooling) is almost empty after only two little glasses.