The LA Times has added an interview with Natalia Tena to their huge array of interviews with cast and crew!

DM: Tonks’ hair is very, um, distinct this time.
NT: I had a mullet, mate! For ages, I had this mullet until someone on the street stopped me and said, “Darling, can I cut your hair for free? Because you look a bit weird.”

DM: You start shooting “Deathly Hallows” next month. What can you tell us about the script?
NT: I’ve read Part One and it’s brilliant, I wasn’t so sure about the last movie but this one I was like, “Yeah, they got it spot on.” I’m re-reading the book right now. I started having insane dreams again. Whenever I start a Potter film, I get these dreams. The last dream I had I was in a war and the sky was blotted with broomsticks and I couldn’t find my wand. It was so intense. I always have mental, intense, war wizard dreams when I’m doing the films.