The Olympics tennis court is a giant green screen.

The answer is true because the Olympic tennis court is made of a bright green surface known as "DecoTurf." This shade of green is commonly used in tennis courts to provide a high contrast for both players and viewers, as it helps enhance the visibility of the yellow tennis balls during fast-paced matches. Additionally, the green surface acts as a giant green screen, allowing for better camera work and special effects when broadcasting the matches on television or other media platforms.