The movie Peggy and Don were seeing was ''Casino Royale''
Marie Calvet: Not every little girl gets to do what they want. The world cannot support that many ballerinas.
Although credited, January Jones (Betty Francis), Jared Harris (Lane Pryce), Kiernan Shipka (Sally Draper) & Christopher Stanley (Henry Francis) do not appear in this episode.
The song playing at the end of the episode is "You Only Live Twice" sung by Nancy Sinatra.