Sir Alec Guinness only made this movie as a favor for his friend, director Charles Frend. He later referred to this movie as "wretched".
Sir Alec Guinness played multiple roles in this movie, as he did in his first movie for Ealing Studios, Kind Hearts and Coronets (1949).
Although this is an Ealing Studios movie, it was shot at the studios at Borehamwood, as the Ealing facility had closed down.
Arabella was the name of a lady tattooed on a crew member's arm in the WW2 submarine film "We Dive at Dawn". He gets another crew member, who knows this lady, to alter an existing girl's name (Nelly) into Arabella at a shilling a letter.