You remember WARGAMES. It's the one about the high school computer nerd who breaks into a government supercomputer thinking that it's a video game company and inadvertently nearly starts WWIII. I'm pretty sure the chances of something like this playing out in real life are about zero point zero, but it's still a fun movie. Watching it now, it's dated as hell, but looking at all those ancient ass computers just adds to the charm of the film.
Uhh, well. I'm not sure what else to say. Topless Matthew Broderick, quick pace, entire population of Earth hinged on a computer learning a lesson, attractive Ally Sheedy, nerds yelling, hotwiring a payphone, Galaga, Global Thermonuclear War, military general guy versus, computer nerds, 80's fashions, DEFCON 1, a gigantic door with apparently no safety features, uncooked corn. I'm sure by this point in your life you've already seen WARGAMES, but if not you should check it out. Simple, but fun movie.