The credit titles for writer, producer and director are written on sandwich boards carried by writer Wolf Mankowitz as he walks around Soho.
Despite Cliff Richard being at the time Britain's hottest male singer, the EP record of his songs from the film barely scraped into the singles charts, failing to make the top ten.
In the UK in the sixties, EP records had their own charts, in the main; the EP of Expresso Bongo made number 1 in the EP charts. It was rare for an EP to figure in the singles charts.
Meier Tzelniker and Susan Hampshire were the only cast members to carry their parts over from the stage-play.