Keep off the Grass is a 1969 educational film written, produced and directed by Sid Davis. Like all of Sid Davis's films they were made very heavy handedly. Tom gets in trouble when his mother finds a joint in his room. Instead of punishing Tom, his father challenges him to learn more about marijuanas evil effects on society. Nobody gets killed in this Sid Davis film, yet Tom still learns a harsh lesson after being mugged by druggies and learning that his best friend sells pot to school children. One of the last Sid Davis films to focus on drugs.