31 Best Apocalyptic Movies Of All Time Ranked

This film tells of a uniquely terrifying plague, which only attacks strains of grasses and grains, including wheat and rice. In the wake of this catastrophe, the world descends into famine, and, consequently, chaos. We follow an upper-middle class architect named John, who becomes the de facto patriarch of a group of family, friends, and stragglers as they make their way to the safe haven of his brother's farm. Pay no attention to that middling Rotten Tomatoes score: What "No Blade of Grass" lacks in polish and a finer touch it more than makes up for in grim, stifling ecological terror. Enduringly relevant and dystopian, "No Blade of Grass" is an essential watch for anyone with a taste for the dreary, hopeless outlook of 1970s science fiction.

• Starring: Nigel Davenport, Jean Wallace, John Hamill
• Director: Cornel Wilde
• Year: 1970
• Runtime: 96 minutes
• Rating: R
• Rotten Tomatoes Score: 40%