When Charlie (James Booth) sees Maggie's (Barbara Windsor) baby in the pram he says "Look at that expression, that is definitely my baby". He's telling the truth as it is his own daughter Sarah (Sarah Booth).
The first English language film to be released in the U.S. with subtitles.
Brian Murphy and Yootha Joyce would go on to play husband and wife in 1970s sitcoms Man About the House (1973) and George & Mildred (1976).
As befits its setting, this film had an East End premiere rather than a West End one. The premiere took place at the ABC cinema. Mile End Road on Tuesday February 26th 1963 and should have been attended by HRH Princess Margaret and her husband the Earl of Snowden. Unfortunately, Princess Margaret went down with the flu and so Lord Snowden attended on his own. The West End premiere run began on the following Thursday at the Rialto cinema, Coventry Street.