All of you who said this movie was dumb, unrealistic, or not scary, that is the point of a B-movie, as others have pointed out. What made this movie great was that it knew it was cheesy. A valley-girl cheerleader and her movie-theater-employee sister running around with machine guns, raiding the mall and saving the world while hiding out as radio DJ's, is not supposed to be taken seriously. Of course it is ridiculous that people would be instantly incinerated, yet plant life, clothes, and the electric company would be untouched. A lot of Academy-Award winning movies are not realistic either. This is supposed to be entertaining, and make you think about what you would do if you were one of the few people left in the world. This film was a classic 80's comedy. And I for one found the zombies pretty creepy, except for the junior zombie that breaks into Hector's mom's house, that was just hilarious. Catherine Mary Stewart (Regina) is great as the older sister, I was always surprised that she didn't become a bigger star after this one. If you grew up in the 80's, and you never saw this movie, see it now! It is an 80's classic! To this day I can't jaywalk without hearing the line, "The future of civilization is on us, we do not CROSS against the LIGHT!!"
