"Monster Island" as a concept showed promise.Regrettably, no one seemed to have any idea, what to do with this 1950's style, retro monster story. This film literally wanders around aimlessly, for the majority of its run time. What it should have done, is quickly establish a survivalist tale, where the underdog protagonists, take risks and set traps, to defeat the vicious humanoid amphibian creatures, stalking them. In summary, strong casting choices, plus a great retro concept, that could have worked so well, had the script had a clear purpose and direction. As its stands, a mediocre watch.