This film narrowly escaped an X rating in the U.S. because of some questionable footage during the Cliveden House orgy sequence. Under closer scrutiny it was determined that a couple of extras were engaged in actual copulation on a piano in one of the background scenes. Even though they were not captured in sharp focus, the scene had to be trimmed for all general releases to avoid the restrictive rating, which BBFC censor James Ferman accomplished by defusing the light from a table-lamp in the foreground. The inquisitive-minded will find this sequence at approximately 49 minutes and 5 seconds into the movie.
Many UK actors are said to have refused roles in this movie because of the subject could cost them knighthoods and the other honors.
David Suchet was offered the role of Profumo but turned it down.
Although billed in the cast as 'Matinee Idol' Trevor Eve's character is referred to in the movie as 'David Fairfax Jr'. This is a clear reference to the real-life role played in the Profumo affair by 'Douglas Fairbanks Jr', who was not named when the movie was made for legal reasons.