Mondo Knows Facts
Mary Poppins used a yellow screen, not green
Sodium vapour lighting gave a cleaner matte than blue screens For the animated and live action blends in Mary Poppins (1964), Disney used a screen lit with sodium vapour lamps, which produce a narrow yellow wavelength that could be separated from the actors far more cleanly than blue. The process needed special film stock and a large rig. Green screens later became standard. It sits in Mondo's movies & tv collection, one of 200 facts that each trace back to the reference below.
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Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.
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Tags: 1964, visual-effects, disney
Mary Poppins used a yellow screen, not green: the short answers
- Where does this come from, and can I check it?
- Sodium vapour lighting gave a cleaner matte than blue screens. The figure is taken from Walt Disney Archives, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a movies & tv fact?
- Yes. It sits on the Movies & TV shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.