Deadlier Than the Male intrigue when he comes to visit. The title is a reference to the 1911 Rudyard Kipling poem "The Female of the Species," which includes the line, "The female of the species must be deadlier than the male", and also refers to Sapper's earlier Drummond book, "The Female of the Species". The working title of the film was "The Female of the Species". "Deadlier Than the Male", the song featured in the film`s opening credit sequence, was performed by the Walker Brothers. Filmed in Technicolor and Techniscope, portions of the film were shot in Lerici, La Spezia, Liguria, Italy. A sequel,
The Grave (poem) of their anatomy is unimpeachable, and the moral expression dignified and masculine". However, Johnstone was not wholly positive in his criticism, observing that in the close of the poem there is "short-coming, if not absolute failure", and that the final triumph of Resurrection over the powers of Death and Hell were "felt to be wanting". Rather than "the rapturous exultation of the true poet", the close is "in that tone of sober confidence which might have found place in any eloquent sermon". The most famous publication of the poem was by Robert Hartley Cromek, in part because it occasioned an