* DiagnosedByTheAudience: Fred. It's never outright confirmed, but he doesn't disagree when Harriet accuses him of being mildly autistic and shows enough self-awareness about his innocent insensitivity to suggest that if he is, he's far to the high-functioning end of the spectrum.
%%* JerkassWoobie: Peter, by the end.
* HarsherInHindsight: Fred's already-failing marriage going down the drain due to his burgeoning feelings for Harriet becomes harsher after Creator/EwanMcGregor fell in love with Creator/MaryElizabethWinstead while filming ''Series/{{Fargo}}'' and divorced his wife to be with her.
* MemeticMutation: People love to make fun of the title due to how strange and awkward it sounds and how much it's [[TitleDrop name-dropped]] in the movie.
* UnintentionallyUnsympathetic: After Harriet's soldier boyfriend Robert turns up alive, Fred admits to him that he loves Harriet. Robert sarcastically comments "well I'm sorry I'm not lying dead in a ditch somewhere," to which Fred remarks "so am I." Although Fred apologizes for it immediately afterward, saying that he was just joking, he seems less than sincere.