Space Debris

No wonder interstellar life just keeps driving right on past earth. We leave 170 million wrecked cars on our lawn. I wonder if there is a scientifically sound story idea about a natural or man-made event that would cause all the space debris to be pulled down to earth? You know, a nice summer disaster flick? It could star John Cusack, and he could run around the world trying to save his onscreen family from flaming shrapnel from the sky? Hell, we could even slap a sequel label on it and call the movie Gravity II: Homefront!

Yeah… why are all my middle-of-the-night story ideas so really, really, really bad?