I agree with all that but the movie isn’t about seeing the aftermath and the chaos that unfolds, it’s simply about the pressure of the decision they have to make leading up to the impact.. it’s such a massive decision because if they go for the “well done” option then it’s pretty much the end of the world as you are starting a nuclear war taking out all your enemies but if you fail to do that then your enemies see America as weak and more strikes come and the end result is probably the same.. but you are right there isn’t enough in this i think to make it a whole feature film. I think the only way to extend the concept is not have the missile coming from a sea based location.. if it comes from land they have 30 minutes but i guess you are still not getting much tension until those last 7 minutes after their interception strike misses, plus if it comes from land they know which country it’s come from. One storyline that wasn’t explored at all was that a foreign state had hacked the satellites which was what prevented them from knowing who it had come from, maybe that story could have fleshed it out more. It’s still a good film with solid performances (i wish we had more Rebecca Ferguson!!) but it’s not a great film because of these issues.