It's been awhile since I've seen Fail Safe, but I could've sworn it was B-52 bombers that they couldn't contact, not a missile. Like Dr. Strangelove, only serious.
Okay, the people and real animals attempts were clever, and not near as funny as Larson's originals. But this is just run-of-the-mill Photoshoppery swill.
Believe it or not, for its time...this thing was way ahead of its time.