I'll tell you why so serious

The story, direction, characters, and writing/dialogue is akin to taking a tranquilizer shot to the neck, but everything else was so well done.

Unshakable, witty and deeply felt, the film will be paying emotional dividends for a long, long time.

Yes, absolutely, there is fun to be had, as well as many, many things to go boom, all amid an atmospheric urban jungle.