A bit off-topic maybe: I really think the earlier film made by the same production team (Crazy Pictures), "The Unthinkable" [1], is a much better film than "Watch the Skies".

But apparently IMDb does not agree: "The Unthinkable", IMDb rating 6.0 "Watch the Skies", IMDb rating 6.4

[1] https://www.imdb.com/title/tt5227746