This is not up to the standard of the previous two Sinbad adventures - it's too long and Patrick Wayne is a distinctly charisma-free hero. But there's still plenty of pleasure to be had from the special effects of Ray Harryhausen, who enhances this romantic exotica with his distinctive brand of visual thrills. Highlights include a chess-playing baboon, three axe-wielding ghouls, a sabre-toothed tiger and a one-horned troglodyte. These all help to pass the time agreeably between the frothy Arabian Nights nonsense standing in for the plot.

Princess Farah refuses to marry Sinbad until Prince Kassim, her brother, is able to give his consent. However, the Prince's wicked stepmother, Queen Zenobia, has changed Kassim into a baboon in order to have her own son crowned as caliph. Sinbad, his crew, the Princess and the transformed Prince travel to a distant land, fighting every obstacle Zenobia places in their path, to seek the advice of a legendary wise man who can possibly tell how to end the spell.