Although a truly innocent movie about young love, wrapped up in a sunken treasure scenario, the marketeers then and now could not resist trying to inject elements of sexuality, the poster for the original movie highlighting what would be Hayley Mills’ second screen kiss (following a smacker from Peter McEnery in The Moon-Spinners the year before), the poster for the DVD sticking the star in a bikini that she does not wear in the film.
The film was based on the 1921 novel Satan: A Romance of the Bahamas (filmed as Satan’s Sister in 1925 with Betty Balfour) by Henry de Vere Stacpoole, who had previously dallied with young love in The Blue Lagoon. Despite the title, there was a complete absence of the demonic. In the book, she is sailing with her brother. That character was eliminated in favour of a father.
The 1960s teen movie that could as easily morph into angst (Splendor in the Grass, 1961), blackmail (Kitten with a Whip, 1964) or madness (Lilith, 1964) was generally more at home with innocence. The beach party movies and series like Gidget rarely involved more than a stolen kiss, the characters all clearly virgins, and certainly did not go down the brazen sexuality route that would mark the second half of the decade.
Hayley Mills is on charming form as tomboy Spring Tyler (hence the title) sailing the Caribbean as mate to her conman father Tommy (played by her real-life father John Mills). Their idyllic life is heading for the rocks since the father didn’t “figure on the little girl growing up.” With one eye on providing a suitor for his daughter, the skipper takes on board a Harvard Law School graduate William (James MacArthur) ostensibly to give him experience of fishing.
True love takes its time since the girl has no intention of growing up and prefers a life of independence. Initially, they are sparring partners – she mocks the fact that he wears pyjamas. But once the story kicks off, they find they have more in common.
The sunken treasure element, while slim, is enlivened by some over-the-top acting by Jose (Lionel Jeffries) and Judd (Harry Andrews). The three leads are actually quite good, John Mills (Tunes of Glory, 1960) totally convincing as a effectively a spiv on the high seas with Hayley Mills (The Family Way, 1966) as the independent woman (“I’m me so don’t expect anything else”) and the confident sailor becoming entangled in unexpected emotions.
Surprisingly, James MacArthur, also a graduate from the Disney acting school, though a decade older than Hayley Mills, shows unexpected subtlety, and this would be a springboard to more demanding roles in cold war thriller The Bedford Incident (1965) and WW2 epic Battle of the Bulge (1965). Cocky and rich, he is quickly brought down earth when she proves a faster swimmer and plays tricks on him. But he soon proves his worth.
Director Richard Thorpe’s career was winding down after four decades in the business and this was a far cry from MGM spectaculars Ivanhoe (1952) and Knights of the Round Table (1953) and even Jailhouse Rock (1957) but he keeps a tight rein on the narrative, makes good use of the scenery (Spain doubling for the Caribbean) and walks the delicate line of allowing the adolescents to explore their feelings with tipping over into anything more overt.
He was a better director than the material deserved, but then so was writer James Lee Barrett who the same year would receive screen credit for The Greatest Story Ever Told and western Shenandoah. However, their involvement made it an accomplished little picture and gave audiences a taste of what Hayley Mills could do in a film that did not tether her to child star mode.
The New York Times second-string reviewer Howard Thompson, in tagging the star “this delectable miss, now all of 18” opined (review, June 17, 1965) that the “two young people are the most winning advertisement for young love in a long time.”