The opening rendition of "Molly Malone" is performed by Ciarra Lee, from an arrangement by Jefferson Moore.
Expanded to feature length from the short, The Colleen (2022). The short was conceived in 2020 when the producers were seeking a new project that would conform to the constrictions of the government lock down.
Megan Massie appears in archive footage unused in Reading Kate (2015). Maisie Owens appears as a younger version of her character.
Director/screenwriter Jefferson Moore decided to go with digital "de-aging" to tell the story after viewing similar techniques in The Irishman (2019).
As was the case with the original film, Reading Kate (2015), Meeting Kate (2023) revolves heavily on the concept of the "Irish goodbye".