A sequel to this film, "Shock Ending II", was announced by VideasFilms as being in pre-production on 9th September 2018. However, the death of Brian Davies nine months later meant that this project would not go ahead.
The mock-vintage movie being watched during this film is titled "Old Movie" in the end credits, but is referred to as "Low Budget" within the film itself.
Phil Williams was a real-life assistant in the Tiger Video Store, Holyhead, playing... an assistant called Phil Williams in the Tiger Video Store. Because of this his credit onscreen is "himself", despite it being an acting role.