CAT 8
The trailer made it out to be basically the film version of xkcd 673, but without the pace, acting or effects budget of The Core (they did, however, borrow the plot of The Core). Instead of a shuttle full of NASA's hottest astronauts, they had a dubious B-plot about a defence secretary with a really stupid personal grudge. This was a mistake, which let the film down greatly. Bonus points for a superluminal coronal mass ejection, though, and I should stress that the title has nothing whatsoever to do with UTP cable.
Noteworthy for the way that all the characters make sensible decisions in the early stages of the disaster, if only as a lesson in why stupid disaster movie characters are actually better.
It was still a better movie than Stonehenge Apocalypse.