Of the twenty or so science fiction films produced in America during the 1950s, there is a fascinating subset of nine films that do more than portray an invasion. These films use the invasions as metaphors for assaults against the integrity of various things such as the self, marriage, and notions involving the supremacy of the human race. Combining both appreciation and critical analyses, this book studies the following films: The Day the Earth Stood Still, I Married a Monster from Outer Space, The Incredible Shrinking Man, Invaders from Mars, Invasion of the Body Snatchers, It Came from Outer Space, Kronos, The Thing from Another World, and War of the Worlds.