When Avery arrives at Erica's front door, she has the proposal in an envelope. However, she leaves the proposal itself on the doorstep and walks away with no envelope.
In a reverse shot at the kitchen the following morning after the party, as Erica is talking about the children's Mass, Logan lifts the coffee cup to her mouth. However, the cup is down by her chest on the next immediate cut.
The gummies package says "Now with TCH" rather than "THC".
When walking through the town, none of the snow that is falling actually lands on the characters head/shoulders/clothes.
At approximately 2:30 into the movie, when Logan tells Avery "I'm not that drunk", you see his lips not moving when "that drunk" is spoken.
At 20:55 in the movie, when Avery pulls Logan into the bathroom to talk, camera and crew member can be seen in the bathroom mirror.