Related Clues:

• Film gallery to the south of a church
• Sound recording disc, used for demonstration purposes
• Sound recording disc
• Film expert standing in front of gallery
• Film on which diagrams may be written and projected
• Clear plastic overlay
• Art film?
• Top Gun opens at Third Avenue Theatre entertaining film-maker perhaps
• Artificial textile fibre
• Synthetic material seen in superb gallery
• Cellulose compound in clothing
• Protective sheet
• Film sheet material
• Transparency shown by excellent gallery
• Protective film