The screenplay was adapted from two diary accounts by Colin Clark, which document his time on the set of the 1957 film The Prince and the Showgirl and the time he spent with Marilyn Monroe.
Skenarionya diadaptasi dari dua catatan harian karya Colin Clark, yang mendokumentasikan masanya saat pembuatan film tahun 1957 The Prince and the Showgirl dan pada waktu saat ia bersama dengan Marilyn Monroe.