December 14, 2009 7:08 pm Sam Worthington Goes Native in “Avatar” Sam Worthington chats about the challenges of immersing himself in the world of “Avatar” and what it was like kissing Zoe Saldana. US & World Videos 1:22 Cream cheese spreads recalled over salmonella risk 2:00 What are tariffs? 53:59 How these Hispanic entrepreneurs revolutionized ready-to-eat Mexican products in US grocery stores 7:07 Brooke Shields on falling in front of Johnny Carson on ‘The Tonight Show' and ‘Mother of the Bride' 3:46 Reba McEntire on Snoop Dogg and Michael Bublé joining ‘The Voice'