OK, lit majors and climate freaks, this is the movie weekend for you.
The best new movie this week is "Anna Karenina," a lush and exuberant adaptation of Leo Tolstoy's classic novel. Keira Knightley radiates as the title heroine, the Russian noblewoman whose indescretion with the dashing Count Vronsky (Aaron Taylor-Johnson) leads to her downfall in St. Petersburg society. Director Joe Wright, who worked with Knightley on "Pride & Prejudice" and "Atonement," hits on the clever conceit of staging the action in a giant theater, choreographing the scene changes in a swirl of color and motion. The top-flight cast includes Jude Law as Anna's upright husband, Matthew Macfadyen as her philandering brother, and Domnhall Gleeson (Bill Weasley from the "Harry Potter" series) as the idealistic Nikolai Levin.
Also worth checking out this weekend is "Chasing Ice," the astonishing documentary that won the prize for cinematography at this year's Sundance Film Festival. Director Jeff Orlowski follows National Geographic photographer James Balog on his mission to record the receding of the world's glaciers by setting up time-lapse cameras to photograph the melting as it happens. The footage is amazing, and points to the reality of global climate change.