This sincere but almost terminally cute movie seems to have escaped from confinement on the FOX Family Channel. Tired of moving whenever her single mom (Heather Locklear, "T.J. Hooker") has a romantic meltdown, a teen girl (Hilary Duff, "Lizzie McGuire") concocts an imaginary secret admirer for mom. When the romance takes off, our duplicitous young heroine is called upon to hire a fake suitor (Chris Noth, "Sex and the City"). Hijinks ensue. From the director of "Lizzie McGuire" and the Hilary Duff film A Cinderella Story. Needless to say, this one is almost exclusively for the consumption of Hilary Duff fans. PG.