The Duffs are certainly cute together, but not even their natural chemistry can enliven all the preachy bits about hard work and the meaning of happiness.

Isn't as witty, stylish, or sophisticated as the similarly themed "The Devil Wears Prada." Material Girls is pitched to the Seventeen crowd, and it succeeds on its own terms. These days, even pre teens live in a material world.

It's less substantial than cotton candy, but Material Girls is as slickly produced as one of the Marchetta TV spots.

A superficial tween comedy that mocks celebutantes like the Olsen twins while simultaneously pushing stars Hilary and Haylie Duff as their replacements.

The Duffs don't even fully commit to their characters here -- they’'e seemingly undecided about whether they can get away with being shallow and bratty without ruining their family-friendly images.