Repeal the laws of physics

Rating: 5/10 (17 October 2013)

I'm giving it a "5" because I haven't actually seen the movie yet, but did someone repeal the laws of physics? I read the extended synopsis, and it appears that "space debris" is constantly running about, destroying things.
Any debris from something in a static orbit should be in the same orbit, not overtaking something else in the same orbit with enough energy to do damage.
If something blows up and accelerates, it will go to a higher orbit. If something blows up and decelerates, it will go to a lower orbit. In either case, it will then be traveling at the same speed and velocity as other things in that orbit.
If something blows up and enters a different orbital plane of the same diameter, it will intersect the other orbital plane twice per orbit, but still at the same relative position -- it won't overtake an object in the first orbital plane.
Or am I missing something important here?