The script by del Toro and Matthew Robbins — and, based on the advance material at the time, Steven Soderbergh and John Sayles in uncredited assists — manages to cleverly incorporate elements from mad - scientist movies,
giant - insect flicks and traditional monster - on - the - loose tales, and the mere thought of roach - like critters the
size of Sylvester Stallone will unnerve anyone with even a hint of a
bug phobia.