Adrienne Posta replaced Una Stubbs as Rita, and Paul Angelis replaced Anthony Booth as Mike for the film. Both original actors continued to play their rôles in the parent BBC series, with Posta later guesting in Party Night (1974).
Alf references Bobby Moore's alleged (and ultimately dismissed) theft of a bracelet from a jeweller in Bogotá, Colombia in the lead-up to the 1970 World Cup, which saw the England captain detained for four days.
At the match, Alf shouts to Reg Pratt in the executive box, West Ham United's chairman from 1950 to 1979.
Alf mentions Clyde Best to Enoch: he was one of the first black players in First Division English football, scoring 47 goals as a striker over seven seasons at Alf's beloved West Ham between 1969 and 1976.
The Garnetts (at 35) and the Frewins have top floor flats in the fifteen-storey John Walsh Tower block.