'Avatar' stars Sam Worthington and Zoe Saldana dispel Sam's tough guy image, tell us why kissing Zoe is like making out with your sister and say the biggest lesson learned working with James Cameron is ... duck! 'Avatar' stars Sam Worthington and Zoe Saldana dispel Sam's tough guy image, tell us why kissing Zoe is like making out with your sister and say the biggest lesson learned working with James Cameron is ... duck!

Sam seems pretty sweet on Zoe, so you'll have to excuse us if we don't believe his claims that the loves scenes were the most difficult part of filming. Professing to be a "pussycat" compared to his Australian peers, the only injury he sustained during filming was breaking his pinky finger ... three times. Maybe we should hope that beard fills in so he can quit acting and get behind the camera where it's safer.