The Unthinkable

It's impressively staged, especially considering the low budget, and contains a number of action beats that put their high-priced Hollywood competition to shame.

A riveting disaster movie that’s actually heartbreaking, and doesn’t so much delight in world-ending events as it recognizes that surviving them never ensures a happy ending. Getting through the ordeal is only half the battle.

It packs everything but the kitchen sink (though it does bring the entire Swedish government) into a two-hour-plus survival story that mostly keeps you on the edge of your seat, especially once the bravura action scenes kick in and you start wondering how the heck the filmmakers pulled them off.

A lot of big action pictures add “a little heart” between the thrills, but The Unthinkable reverses the ratio, centering emotions. Some genre fans may be impatient with this approach at first, but by the end, it really works.

It’s the depictions of social breakdown, Swedish tempers exploding, soldiers questioning their priorities in an absence of orders and the action beats — Björn’s crackpot defense of the power station — that drive the narrative, punching through one Big Effect, crash or firefight right into the next.

Despite some strikingly accomplished elements, the awkward whole never quite gels, sewn-together parts from “Red Dawn,” “Independence Day,” et al., failing to cohere amid major logic gaps, not to mention lead characters more off-putting than interesting.