film

n.A thin coating or covering.A thin, flexible sheet, especially of plastic.PhotographyAudiovisual RecordsA thin sheet of plastic, in a sheet or roll, coated with light-sensitive emulsion to be exposed in a camera.Audiovisual RecordsA motion picture production; a movie.Audiovisual RecordsThe discipline of making motion pictures.

Notes

Film2 generally refers to unexposed materials. After the film has been developed, it is often called a negative, transparency, or slide. - Film3 is often used as a short form for microfilm.