Katharine McPhee sang "Beautiful" live on camera, with the orchestral arrangement recorded in the studio later.
The Marilyn musical that is continually referenced in the pilot, was a Broadway flop that lasted at the Minskoff for 17 performances. It starred Alyson Reed as Marilyn and Scott Bakula as Joe Dimaggio. It opened on November 20, 1983 and closed on December 3, 1983.
Christian Borle (Tom Levitt) and Brian d'arcy James (Frank Houston) currently star together in the musical Something Rotten! on Broadway.
Christian Borle (Tom) and Annaleigh Ashford (Lisa) have both previously starred together in Legally Blonde: The Musical as Emmett and Margot respectively.
Derek Wills (Jack Davenport) mentions in this episode that one of Marilyn's earliest films was The Asphalt Jungle (1950). This film was directed by John Huston, whose daughter Anjelica Huston plays Eileen Rand on the show.