"The Thistle in the Kiss" is the feature film expansion of Craig Andrew Robertson's previous fiction short film, "Into The Bleak" (2020).
Shot on location in Glasgow and Mennock Pass. While the film is set on Christmas Day and New Years Day, the entire shoot took place in June.
Sarah Coyne was one of 68 actresses who sent self tapes to audition for the role of Rachel.
The shot where Craig Andrew Robertson tears his jumper was recorded in one take.
The flashback scenes consist primarily of improvised dialogue by Leonora Cooke and Craig Andrew Robertson.