The license plate of the wedding car reads "Slim", Cyclops' nickname.
Beast quotes from dramatist John Ford's "The Broken Heart" and composer Gilbert/Sullivan's "The Mikado".
This is the first (aired) episode of season 4 to feature speaking appearances for every member of the X-Men. None of the X-Men wear their usual costumes in this episode.
Professor Xavier mentions that Scott and Jean were his first two students