In the montage of the girls getting ready for their dates near the movie's beginning, the 45 r.p.m. record is "Fell In Love On Monday" by Fats Domino, who is also the topic of the magazine article near the record.
Although Desmond Davis was a well-respected camera operator, particularly known for his associations with Walter Lassally and Douglas Slocombe, he was understandably very nervous when Woodfall Films, which had employed him in this capacity several times, agreed to promote him to director with this film. His nervousness was increased at the start of shooting when leading man Peter Finch, somewhat drunk, told him, "You know, mate, I could really fuck you up if I wanted to"---but, he later said, Finch was, in fact, the soul of professionalism and an excellent actor.
Eugene's car is a 1950 Jaguar Mk V drop-head coupe. Only 977 Mk Vs were made from 1949 to 1951, and only 400 with right-hand drive. In excellent condition in 2018 these cars can be worth $100,000 or more.
True to his reputation as a Hell-raiser, Peter Finch made the round of the bars after work. Said Desmond Davis, "He had a car and a driver and the driver complained after about a week that because of Peter he was never getting home at all, and in the end we had to have two drivers for his car; one for the day and one for the night. God knows where Peter went around Dublin all night and God knows what he did but he was never late for his seven o'clock morning call, and he always knew his lines, absolutely.
Made on a budget of £140,000.