The sensor: The most obvious difference between film and digital is the sensor used to take the photo. With film cameras a film sensitive to light is placed behind the lens. When a photo is taken the shutter opens for a predetermined period of time and light hits the film. The result is a photo "printed" on the film.
When I preformed in my musical we would get our costumes and go outside to she if she liked them. If she didn't agree with it then we were sent back to find another one. This is just preparation for the your play to make sure it fits properly and it would match in the scene you're in.
