The title of Part 1, "A kiss is but a kiss," comes from the song "As time goes by," as heard in the movie Casablanca, starring Humphrey Bogart and Ingrid Bergman.
David Kemper's original idea for the story involved a fairy tale in which Crichton got married, had a child, and had to be a statue for eighty years. When a freelance writer declined to write the story from the pitch, Kemper decided to write it himself.
All fourteen scenes that were added to make the two-parter into a trilogy were directed by Andrew Prowse, but since these were threaded throughout the three hours, the episodes were jointly credited to him and Tony Tilse.
The exterior scenes with the Scarran were filmed in the Chinese Gardens in Sydney.
Thomas Holesgrove took his first role as a Scarran for the exterior scenes after previous actors had problems from the costume and the heat.
During the scene in which Rygel and Aeryn kiss, Claudia Black's cell phone went off, which meant that she had to buy a "slab" (a case) of beer for the crew.
This is the first episode we see and hear about Scarrans.