Muerte bajo el sol

Despite not being in the original novel, early versions of the script included the character of Colonel Race, played by David Niven in Muerte en el Nilo (1978). Niven was offered to return but had to decline due to his failing health.

In the film, Patrick Redfern was wearing swim briefs ("Speedos") on many occasions (suntanning on the beach, steering a motorboat with Myra Gardener on board), and it is suggested that, since the film was set in the 1930s or 1940s, that the male "overall" swimsuit was "norm", and the "Speedo" type suit was an anachronism. This is not true; by 1936 (after the Olympics) men started wearing one piece and much tighter fitting "Speedo" suits. The film is probably set before 1939 (the book was written in 1941), and by this time, fashionable and daring men would have worn this type of swimsuit, particularly to secluded getaways, such as the setting for the movie.

The opening credits feature watercolors by British architect and artist, Sir Hugh Casson, who taught King Charles III to paint. The titles for each actor feature an item of costume, prop or setting relevant to their character and those for the production team are similarly themed.

The BBC have edited two scenes from the film for broadcast. The first is the scene where Arlena Marshall is discussing the proposed show with the Gardners, after Odell tells her that it is called "It's Not Right, and It's Not Fair", Arlena's next line, "Sounds like a black man's left leg" has been cut. The second is in the scene where Kenneth Marshall reveals to his wife that he knows she booked Patrick Redfern into the hotel. Her response, "The bitch Daphne!", is also cut.

Featured in Sneak Previews: Quest for Fire/Union City/The Amateur/Evil Under the Sun (1982)