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 Female Marine series with his name as the printer. There is much discrepancy over the true authorship of The Female Marine, and although it is possible Coverly himself wrote the three pamphlets, it is more likely they were developed by a hack author in his employ. A unidentified newspaper reference (found in the collections of the American Antiquarian Society) at the time suggests that Coverly “kept a poet, or ready writer, who manufactured for him all prose and verse articles which were called for by the occasions of the time.” This author, Mr. Nathaniel Hill Wright, was described as “a comical genius,