Worlds Wildest Moments on Instagram: "In the pill-choice scene from The Matrix, the doorknob acts like a perfect mirror. No angle could hide the camera crew, so the Wachowskis pulled off a practical trick. They dressed the camera rig in a long black coat and green tie to mimic Morpheus’ outfit. What you see in the reflection is the camera body covered in the costume pieces, blending seamlessly while taking the shot. It’s one of the cleanest low-tech solutions in the film, hiding a camera in plai

Adding and Subtracting Matrices