Although she is little known today, Deanna Durbin was one of the most popular stars of the 1930s, a pretty teenager with a perky personality and a much-admired operatic singing voice. This 1937 was her first major film, and it proved a box-office bonanza for beleaguered Universal Studios.
THREE SMART GIRLS concerns three daughters of a divorced couple who rush to their long-unseen father when their still-faithful mother reveals he may soon remarry--with the firm intention of undermining his gold-digger girlfriend and returning him to their mother. Although the story is slight, the script is witty and the expert cast plays it with a neat screwball touch. Durbin has a pleasing voice and appealing personality, and such enjoyable character actors as Charles Winninger, Alice Brady, Lucile Watson, and Mischa Auer round out the cast. A an ultra-light amusement for fans of 1930s film.
Gary F. Taylor, aka GFT, Amazon Reviewer

***SPOILERS*** ***SPOILERS*** If one were to review the film based on the premise alone, one might think that you were looking at an average animal orientated horror flick. The plot is as follows. A group of documentary filmmakers head off to an island in order to film a documentary about surfing with sharks or blood surfing. (I live in South Africa so it was released as "Blood Surf.") Admittedly, this seems to have a somewhat interesting idea behind it which, if it were explored further, could have improved the movie somewhat. However, this is not the case as the blood surfing part of the movie is minimal due to the fact that their documentary is interrupted by a rather large salt-water crocodile.
The script is absolutely terrible. A good example of this is whenever someone gets eaten by the crocodile which is a frequent occurrence in this film, no one seems to give a damn. The most anyone person did in the film was to merely toast the victim in a scene which was meant to be poignant but just ended up being laughable due to the fact that the dialogue in this film was of a highly dubious nature. Another thing that really irritates about this film is the fact that they introduce characters who are totally superfluous to the film itself. They introduce a bunch of pirates who can only be seen to be adding another 10 minutes to a mercifully short film.
The acting can be said to be mediocre. It probably would have been a lot more impressive if they did not have such a terrible script to work from. All in all there isn't one person who made a terrible impact on me. Every single person seemed to be a watered-down caricature and in this way, not one of these actors made any sort of impact on me.
The crocodile itself is said to be huge, over 31 feet exactly and this sense of size is well portrayed by the obvious fake of a crocodile that they have provided for us in the film. The crocodile's death at the end of the film is so ridiculously fake and contrived that it makes one's stomach turn. With a huge cry of bravado, the hero of the film announces that he has a plan which turns out be falling down a hill and getting the crocodile to impale himself on a luckily-placed spike at the bottom of this said hill.
All in all, I would say that this film is one which has to be seen for you to believe how bad it could be. What probably seemed like a good idea at the time suffered from a terrible script and an overwhelming sense of low-budgetness which all served to create a truly awful movie.