July 21, 2011 12:36 pm Chris Hemsworth on “The Avengers” At the “Captain America: The First Avenger” premiere, Chris Hemsworth chats about “bouncing around the country” filming “The Avengers.” So, what happens when a bunch of superheroes hang around each other? US & World Videos 0:26 Kaiser Permanente data breach may have affected millions 2:52 Severe weather kills at least 5 as tornadoes rip through Midwest and South 0:48 World Central Kitchen to resume operations in Gaza 2:12 Pro-Palestinian protests continue to grow at Bay Area universities 8:39 Gina Rodriguez gushes 0ver motherhood with son Charlie