San Andreas

is an hour and fifty-four minutes of headlong insanity.  Its science makes no sense, and no one in the cast tries very hard to portray a well-rounded character, but none of that matters, because it's The Rock vs. Earthquakes, and we know who's going to win that match.  Oh, yeah:  always bet on the The Rock.

Dwayne Johnson is fun to watch from start to finish.  Even when he has to emote, he's become just good enough that you don't need to groan.  He works in a helicopter, a truck, a plane, and a boat, using all of humanity's transportation modes to regain his wife, save his daughter, and kick ass--all while saving people from time to time.

The film contains plenty of short character-based scenes, but it never stays long on them before it returns to a long action sequence.  The SFX and action scenes are spectacular indeed, with astonishing amounts of sheer destruction.

Do not go to this movie if you want great acting or good science or, really, anything that makes sense in the real world.  On the other hand, if you want to see The Rock repeatedly save the day, don't miss it.

I had a grand time.