Crepusculo-es has a new interview with Cam Gigandet and Kristen Stewart!  You can read the English version here at RobertAndKristen.org.
“Tell us about an anecdote or an embarrassing moment during filming.”

“Kristen: Well, in my case there are a lot, because the script has a lot of cheesy phrases, that, in the story they fit perfectly, but it was very difficult for me to say them. Look at a shirtless Rob, on a mound of sand and mud, looking at me and me having to say: “Oh you’re so beautiful…”, was very hard and funny. We couldn’t stop laughing!
Cam: For me, the worst happened while our training as vampires. After Catherine made us watch documentaries about animals hunting in order to take notes of how they acted, she also brought us a professional dancing teacher, and obliged us to take classes with her. I swear I’m the worst dancer in the planet and I had a really bad time.”