Inside the Test Village

I saw Indiana Jones and the Kingdom of the Crystal Skull last night – a film I'll resist reviewing here, despite the temptation – but there is at least one scene that I want to point out. I won't give away any real plot details, but you might not want to read this post if you plan on seeing the movie.
So, quite early in the film, Indiana Jones escapes from a U.S. military warehouse at night on a remote base in Nevada, where he's been taken by alien-obsessed Russian captors. After the sun comes up the next morning, he finds himself climbing over a fence into a cul-de-sac of detached houses.
It's a suburb in the middle of nowhere, impeccably maintained.
He knocks on one of the doors, hears nothing, and so goes inside, calling for help. A TV is blaring in the other room – but when Indiana Jones walks through to the front of the house, he finds that the house is full of mannequins.
There are mannequins watching TV – fake, plastic people with their eyes fixed to the screen.
So he goes out onto the street – and the street, too, is lined with mannequins, little brown-haired kids on bikes and men outside in driveways as if to wash their family cars.
And then a distant, amplified voice booms out over the roar of an air raid siren: the weapons test will begin in ten... nine... eight...
Because he's just walked into an atomic bomb testing village – and now he has to find someplace to hide.