This was our choice for a night home with friends, and very quickly became a shared opinion: this is a great movie to watch drunk and heckle. Maybe a drinking game? Like MST3K. I have no doubt in 20-30 years The Darkest Hour will feature on the show.
I want an hour of my life back. Nothing in this movie works. Nothing is believable. Characters, dialogue, relationships, plot, actions and choices, effects, science, aliens. I have a great capacity for suspension of disbelief. I'll buy almost anything, and stretch way beyond where most people will just give up and move on. I can overlook massive holes in one area, as long as the story and characters are engaging and make me care.
There is a lot of use of technology and gadgets and concepts, but even as a layperson the holes are big enough to drive a truck through. Such as the Faraday cage, well, I mean, it has the word "cage" in it, but that's as far as that goes. Or the aliens with the apparent intelligence and attention span of a dog or toddler; out of sight, out of mind. Well, there was something there, but now I can't see it because it's hiding behind a piece of glass, so it must not exist anymore.
This is too bad, because Darkest Hour showed promise. The previews were really good. The idea and plot sounded cool. But things really fell apart right from the first scene, and kept going downhill.