Our critics' selections

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James Cameron's eye-popping, mind-bending, 3-D space opera about American settlers hoping to plunder precious minerals sacred to native tribespeople. With Sam Worthington, Sigourney Weaver, and Zoe Saldana.

PG-13

The Princess and the Frog An enchanting old-school Disney animation with a new-school heroine, an aspiring chef who is pursuing her dream as a prince pursues her. G

Up in the Air George Clooney, heavy of heart and light of spirit, as a "career transition counselor" facing his own career transition. Jason Reitman's wonderfully entertaining, and incisive, look at contemporary America leavens the seriousness with frivolity - and vice versa. Clooney and Vera Farmiga strike sparks as the frequent fliers and occasional lovers. R