I Married a Monster From Outer Space (1958) - A young man is taken and an alien that looks like him takes his place. His bride notices the difference, even though those around her tell her it sometimes happens after marriage. Like in the other pictures eventually the townspeople figure things out and the day is saved.
What I liked: This movie fit the alien invaders theme and the aliens taking shape of people we know.
What bothered me: Wow the ideas about the PAINS of marriage are all over this flick. Guys commiserate about the old ball. The women act as if a prize is caught and there never seems to be true love in the relationships.