Saturday night we watched Alvin and the Chipmunks (2007,PG) (ScreenIt! Review).  From the ScreenIt! review:

A struggling songwriter thinks he's hit pay dirt when he finds himself in the company of three chipmunks who can not only talk, but also sing in perfect, if high-pitched harmony.

It was OK.  I wondered if they skimped on the special effects because the munks at times didn't seem as well done as I'd have expected.  The boys enjoyed it, especially when someone was shaking his booty or making a rude noise.

I give it 3 out of 5.