He did hate doing it. It was alien to his nature. He reluctantly let himself be drawn into this thing, thinking what he would have done would have be… - Mick Jackson

In this movie, from the outset, I wanted to put it in the scale of people that you might know, people like yourself, your immediate family, relations and so on, and no bigger than that, and not really to show anything except how it would happen to them. So, there's no God's eye view in this movie. You don't actually get to look down and get the overall picture and see maps of Europe and maps of the world and so on. You just get what's happening to these people, and it's all really done from ground level. There's no cinematic crane shots or anything like that. It's just very, very documentary.

What we’d depicted and its implications stayed in the minds of every actor and crew member for a long time. I’m sure there were some nightmares. There are some things so far outside our experience or comprehension that they are unthinkable. Nuclear war is one.

There's the hospital sequence in The Day After and there's the hospital sequence in Threads. [...] In The Day After people are being wheeled in on gurneys and everybody's stressed, but they're coping with it as they would do on ER or something like that. In Threads, the floor is covered with muck and shit and blood and people don't have anything they can work with. [...] We see people having their legs amputated without an anesthetic, just something stuck between their teeth for them to bite on. That's what it's going to be like! And I wanted every part of this movie to be "That's what it's going to be like".