(CNN) — Train wrecks are intrinsically spectacular, and Will Smith’s new movie offers a doozy. Two of them, in fact.

In the first, Jason Bateman’s genial public relations guy Ray is sitting in his car, snarled in traffic and oblivious to the locomotive bearing down on him until it’s almost too late.

Fortunately for Ray, John Hancock (Smith) is on the case. Using his Superman-like powers, Hancock flips Ray’s car up and over in a neat backward somersault, safely out of harm’s way. At the same time he thrusts out his arm and stops the train in its tracks. While Ray is grateful, the guy in the car underneath his isn’t so sure — and the damage to the derailed train stretches back a half-mile or more.

That’s the train wreck within the movie. The train wreck that is the movie is even more interesting.

We all know that Will Smith “owns” the July 4 weekend — so much so, there aren’t any other big openings this week (aside from the small-scale “Kit Kittredge: An American Girl,” which began in limited release last week). Since “Independence Day” he’s virtually become synonymous with Big Summer Fun. And he makes it look so easy, too.

Read more on CNN.com

written by Andrew