The Art of The Polar Express is a much-needed piece of film-stoppage. Yes, an art-of book affords a look into the conceptual art that inspired a feature film, behind-the-scenes bonuses like costume fittings and special effects tests, and elucidating commentary from the filmmakers — but, more importantly, in the case of Polar Express, this is a chance to halt the movie and feast your eyes. This isn’t just an animated CGI feature, after all; this is a Robert Zemeckis picture, and must represent something of a dream come true for the director.

If sweating details was a sport, Zemeckis would be a four-time gold medal-winner. He prepares and previsualizes through all points of the compass to make his camerawork smooth, his mise-en-scene sharp. Some get their kicks skydiving; Zemeckis works out how to combine his establishing shots, closeups and reaction shots into one take. The results can be breathtaking (on the grand scale, the “I See Me” dance number in Death Becomes Her; more intimately, Helen Hunt’s fainting phone-call in Cast Away). But those movies, inconveniently, were filmed, and celluloid is to hard drive as fresco is to oil painting.

Now, for the first time, he’s gone completely digital — and everything’s fixable. Now the director who tamed Jodie Foster’s darting eyebrow in a scene from Contact can get it perfect. Every performance in Polar Express began life as a data set, which means the acting, in fact the whole schmeer, is guaranteed to be Just So. It’s also Just So Much, which makes this art-of book so delicious.

Unable as we are (at least until the DVD comes next year) to freeze-frame this colossus of visual minutiae, The Art of Polar Express offers a chance to linger over some choice middle-American dream landscapes lit by a full moon. If you’ve not read Chris Van Allsburg’s book of the same name, Polar Express is the story of a boy’s midnight train ride to the North Pole on Christmas Eve. In the movie version, we find, this cozy universe has been embellished with dancing, tuxedoed hot-chocolate dispensers; a rollercoaster-crazy jaunt through Arctic glaciers; and an elf rock band. (You try adapting a 32-page kids’ book without garnishing.) Authors Mark Cotta Vaz and Steve Starkey have filled 144 full-color glossy pages with images from this new, expanded adaptation. The result almost works as a lateral-thinking children’s book of its own, albeit much longer and with the story strangely removed. As in Van Allsburg’s original, the surreal paintings of a boy’s journey across moonlit, snow-covered plains and mountains are sure to trigger the reader’s memories of similar magic moments from late-night drives with mom and dad.

Art is the focus, meaning there are lots of digital paintings in generous two-page spreads ornamented with short explanatory paragraphs that don’t delve. So while the reader only gets two sentences from Starkey (who happens to be Zemeckis’ producing partner) on the design for the Elf Bathroom, it’s enough to frame the contents of the image, which overflows with eye candy. There for the pleasure of your right hemisphere is what looks like a Santaland kitchenette with translucent green curtains, miles of chrome and tiny little shampoo bottles, all mounted onto a double sink with a staircase leading to the lip — the elves, you see, have had to adapt technology built to human scale, and this is their shower.

The color reproduction is excellent, with saturated hues and rich blacks. Big landscapes like a view of Corkscrew Mountain invite you to stand back and gawk; detailed interiors prompt you to get squinty and relish the details. (In the Grand Central Station-like Surveillance Room, where naughty/nice attributes are determined and assigned for all the world’s children thanks to a vast network of hidden cameras, it turns out there’s a clock noting the time in Hill Valley, a reference to Zemeckis’ 1985 blockbuster.)

The book includes material from all stages of production, including pen-and-ink drawings, digital paintings, photos of the performance-capture stage where the actors worked, architectural drawings, even souvenir postcards. For vintage toy fans there’s a great spread on the boy’s bedroom showing some astonishingly photoreal Tinkertoys, books and other set dressing. The text is brief at best, but of course there will be oodles of featurettes dissecting the film from top to bottom when the DVD chugs onto your shelf in 2005. Meanwhile, here’s a scenic overlook for the coffeetable.