Hannah Walters and Stephen Graham are married in real life. They also played a married couple in Time (2021).
Duggie Brown, a well known stand up comedian in the 70s, is the old man sitting at the bar when Funny Cow is doing the drinks tray routine.
At around 36 minutes Angus and Funny Cow watch the classic film The Red Balloon (1956) (The Red Balloon) at the cinema.