“ LIFE OF PI” (PG): Ang Lee (“Brokeback Mountain”) adapts Yann Martel’s bestselling novel about the son of an Indian zookeeper who is stranded on a lifeboat with an assortment of wild animals, including a 450-pound Bengal tiger. The trailer is astonishing.

“ RED DAWN” (PG-13): Long-delayed remake of the 1980s staple about a group of teens defending the United States from a foreign invasion. Chris Hemsworth, Adrianne Palicki, Josh Hutcherson and Josh Peck are among the young soldiers on the front line. Instead of Russia, the enemy is now North Korea.

“ RISE OF THE GUARDIANS” (PG) Santa Claus, the Easter Bunny, the Tooth Fairy and other legendary titans must join forces to fight off an evil spirit that threatens to spoil the innocence of children the world over. Chris Pine, Hugh Jackman, Alec Baldwin and Jude Law provide the voices.