"In the first pass, we have a body double stand in. And the camera - it’s this awesome thing called a Technodolly - will memorize all the movements in the scene and repeat them automatically every time we reshoot with me as a different character. Then we take the double out, and when I shoot, there’s a tennis ball, an X taped on the wall, or a dot where my clones are standing, and I have to remember where they move throughout the scene. I also have an earwig in my ear that plays recordings of my other characters’ lines. So I’m basically talking to the air the whole time." - Tatiana Maslany (on playing multiple clones in one scene)