A sequel, "Nearer and Dearer", was mooted but never made.
Hylda Baker sings the theme: the lyrics had been added to Derek Hilton's original instrumental for her 1969 Columbia Records disc "Nearest and Dearest" (DB 8644), though the film uses a different version.
The film reworks elements from various episodes of the Granada TV series: It Comes to Us All (1968), Take a Letter (1968), Lead Me to the Altar (1968), Wish You Were Here (1969) and The Birds and the Bees (1969).
Closer examination of the shot where Eli's Water Chute car at Blackpool Pleasure Beach swerves past the camera reveals Jimmy Jewel pulling a face into the lens.
Hapless Pledge's Purer Pickles employee Claude, played by Jimmy Jewel's real-life son Kerry Jewel, never appeared in the parent ITV show.