The chief location for the film was Greystone, a decaying mansion on the outskirts of Los Angeles which was later acquired by the American Film Institute.
Evelyn Waugh, the author of the 1948 novella upon which this film is based, died on Easter Sunday, 1966, three days after this film's London opening.
This film was famously advertised as "the motion picture with something to offend everyone!"
Both Jayne Mansfield and Ruth Gordon had cameo parts in this movie, but both were cut out entirely during the editing process.
Wilbur Glenworthy: Death has become a middle-class business. There's no future in it.
Sir Francis Hinsley: [introducing Sir Ambrose, a famous actor]
You've probably seen him many times. He usually plays ambassadors or butlers.
Mr. Starker: Rayon... chafes.
Sir Ambrose Abercrombie: Out here, Barlow, there are some things that an Englishman just doesn't do!
Wilbur Glenworthy: There has got to be some way to get those stiffs off my property!
Maxwell Kenton: [speaking of a pet dog]: I did not kill Arthur.
Mrs. Kenton : [inconsolable]: You filthy swine!
Tony Richardson was quoted by journalists as saying that Evelyn Waugh's original novella, first published in 1948, was "thin and dated", although he denied ever doing so in his autobiography. Evelyn Waugh subsequently attempted to get his name taken off the credits of this film version, although he never saw it. Richardson also claimed later that he had written to Waugh to apologise for any misunderstanding.