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Castro Theatre. Tron: Legacy: Sci-fi remake directed by Joseph Kosinski. Daily, 1, 4, 7 & 9:45 p.m. $10-$12. 429 Castro (at Market), 621-6120, www.thecastrotheatre.com.
Dark Room Theater. Bad Movie Night: How the Grinch Stole Christmas: Just when you think it's safe from green and red. Sun., Dec. 26, 8 p.m. $5. 2263 Mission (at 18th St.), 401-7987, www.darkroomsf.com.
de Young Museum. Le Scandale des Impressionistes: This documentary retraces the path of the young Impressionist painters, who diverged from the accepted and historical norms of painting in the latter half of the 19th century. Tue., Dec. 28, 2 p.m. free. 50 Hagiwara Tea Garden (at JFK, in Golden Gate Park), 750-3600, www.deyoungmuseum.org.
Exploratorium. Holiday Animation Film Festival: Fun and Fantasy: Short films using various animation techniques. Dec. 26-30. $10-$15. 3601 Lyon (at Marina), 561-0360, www.exploratorium.edu.
Lumiere Theatre. Rare Exports: A Christmas Tale: Jalmari Helander's weeeird Christmas story. Through Dec. 23. $8-$10.50. 1572 California (at Polk), 267-4893, www.landmarktheatres.com.
Main Library, Koret Auditorium. Elf: Jon Favreau directs Will Ferrell. Thu., Dec. 23, noon. free. A Sea Change: Imagine a World Without Fish: Barbara Ettinger's documentary. Sun., Dec. 26, 6 p.m.; Wed., Dec. 29, 2 p.m. free. www.aseachange.net. 100 Larkin (at Grove), 557-4595, www.sfpl.org.
Multiple San Francisco locations. Call for Submissions: Iranian Film Festival: Fest seeks films by and about Iranians; see website for details. Through Aug. 1, 2011. free. www.iranianfilmfestival.org. multiple addresses.
Red Vic Movie House. The Nightmare Before Christmas: Henry Selick's animated feature. Through Dec. 22, 7:15 & 9:15 p.m.; Wed., Dec. 22, 2 p.m. Sita Sings the Blues: Nina Paley's comedic, tragic, psychedelic, brand-new animated retelling of the Ramayana, with songs by 1920s jazz bird Annette Hanshaw. Fundraiser for the theater. Thu., Dec. 23, 7:15 & 9:15 p.m.; Sun., Dec. 26, 2, 4, 7:15 & 9:15 p.m. $6-$9. The Dark Crystal: Jim Henson and Frank Oz's all-puppet fantasia. Dec. 27-28, 7:15 & 9:20 p.m. 1727 Haight (at Cole), 668-3994, www.redvicmoviehouse.com.
Roxie Theater. The Social Network: Film about the founding of Facebook including its founder Mark Zuckerberg. Dec. 22-23; Dec. 25-30. Boxing Gym: Documentary by Frederick Wiseman. Dec. 22-23, 7 & 9 p.m.; Dec. 25-30. $6-$10. 3117 16th St. (at Valencia), 863-1087, www.roxie.com.
The Walt Disney Family Museum in the Presidio. Christmas with Walt Disney: This holiday screening includes items from TV Christmas specials as well as The Nutcracker Suite from Fantasia (1940), Pluto's Christmas Tree (1952), and home movies of Walt Disney and his family. Dec. 22-24; Dec. 26-27; Dec. 29-31. free-$20. 104 Montgomery (at Lincoln), 345-6800, www.waltdisney.org.
VIZ Cinema. "Mifune x Kurosawa: A Beautiful Man": Series of seven classic films. Through Jan. 6, 2011. $10. Ping Pong: SORI's feature about table tennis. Free Senior Movie Day! Wed., Dec. 22, 1:30 p.m. 1746 Post (at Webster), 525-8600, www.newpeopleworld.com.