CINEMA: MOM'S A SPY

Tis a week before Christmas, and, this being a movie by the writer of Lethal Weapon and the director of Cliffhanger, the bad guys are trying to blast our working-mom heroine (Geena Davis) to hell. The villains--the usual CIA renegades--slaughter a couple of dozen bystanders at a train station while the heroine and a private eye she's retained (Samuel L. Jackson) dash to an upper floor. The dastards follow and shoot a deadly fireball their way. The only escape is from a high window, but below is a frozen pond. No problem: Davis blasts enough bullets into the ice to make...