 Finding "corn as high as an elephants eye" proved to be quite a  challenge. Since filming was to take place out of season, no tall  cornfields were to be found anywhere. The job was given to the  people of the University of Arizona Agricultural Department, who  planted each stalk in individual containers and held their breath.  With rain and good luck, the corn grew to a height of 16 feet,  causing Oscar Hammerstein (qv) to quip: "The corn is now as high  as the eye of an elephant on top of another elephant."