Newton’s Third Law of Motion states that for every action, there is an equal and opposite reaction. Similarly in the world of cinema, for every successful movie there’s always a cheap Italian cash in version, usually of inverse quality. However unlike the laws of physics, the rules governing knock off films can sometimes be wrong and occasionally you’ll get an enjoyable title. Consider Lucio Fulci’s Zombi 2 AKA Zombie or Antonio Margheriti’s The Last Hunter (L’ultimo cacciatore). Both are quite good movies in their own right, despite being shameless copies of Dawn of the Dead and Apocalypse Now. They both are quite lurid and try to pack as much sensationalism into their running time as possible but they also make a decent attempt at a story. The productions also have an exotic European charm to them. The cinematography, soundtracks and general ambience is subtly different from their US counterparts. Killer Fish shares all these qualities and despite lapses in logic is an enjoyable heist and caper movie with some Piranha thrown in for good measure