Having previously starred as Captain Nemo in the 1916 version of 20,000 Leagues Under the Sea, Alan Holubar was a logical choice to direct the seabound fantasy Siren of the Sea. The film was inspired by the legend of Lorelei, the sweet-singing siren who lured many an ancient sailor to his doom. The film's modern-day Lorelei, played by Louise Lovely, likewise causes a great deal of grief for contemporary seafarer David Waldron (Jack Mulhall) and his sweetheart Julie (Carmel Myers). Given the "mythological" nature of the story and its maritime setting, director Holubar overlooked no opportunity to show Lorelei and her sister sea nymphs cavorting in the near-nude. Siren of the Sea was coincidentally (?) released around the same time as the similarly-plotted Annette Kellerman vehicle Lorelei of the Sea.