Piranha

Engaging tongue-in-cheek exploitation pic from the Corman stable, in which Menzies and Dillman stumble upon an army camp where mad scientist McCarthy has been developing a mutant strain of man-eating piranha fish for use in the Vietnam war. Things get worse when the finned flesh-eaters escape into a local river. John Sayles' witty script plays the action for laughs rather than chills, stealing wholesale from the plot of Spielberg's Jaws, while director Dante piles on the cinematic in-jokes and cheap shock effects.