During the shoot in Paris, Edie Falco had the flu which rendered her voice almost inaudible. Sharon Angela (Ro) had difficulty reacting to Carmela's dialogue when filming the scenes, and Carmela's lines had to be replaced in post-production with Falco recording them only once she had gotten well, already back in the US.
When Carmela tells Tony about her plans to visit Paris, he is watching Is Paris Burning? (1966) on television. Later, when Carmela calls from Paris, Tony jokes, "Is Paris burning?" When he hears it's been raining over there, he replies "When it drizzles," a line from the 1953 Cole Porter song "I Love Paris."
This episode continues the trend of sleeping characters realizing a truth they had been avoiding (Carmela's dream suggests to her that Adriana is dead). In Seasons 2 and 5, Tony's dreams tell him truths about Big Pussy working with the FBI and the need to kill his cousin, Tony Blundetto, respectively.
When Paulie says to Tony and Silvio, "Salvatore Lucania must be looking down on all of us with great pride," it is a reference to Charles "Lucky" Luciano, who is credited in establishing organized crime in the United States during the Twentieth Century.
Paulie talks about Salvatore Lucania in reference of Charlie "Lucky" Luciano. Vincent Piazza plays Hernan in this episode, and he later will be playing Lucky Luciano in Boardwalk Empire (2010-2014), a show created by Terence Winter, writer and executive producer of The Sopranos.