Stereoscopic cinema is a technique that creates the illusion of depth in film by presenting two slightly different images to each eye. This method mimics how human vision works, allowing viewers to perceive three-dimensional scenes on a flat screen. The images are typically captured using two cameras positioned a few inches apart, similar to the distance between human eyes. To experience stereoscopic cinema, viewers often wear special glasses that filter the images, ensuring each eye sees only its corresponding picture. This technology is commonly used in 3D movies and has been popularized by films like Avatar and Toy Story 3, enhancing the overall viewing experience.