What is the title of the Pixar short film about Mater’s ghostly encounter?

Mater and the Ghostlight is the Pixar short film about Mater’s ghostly encounter.

The short follows Mater as the residents of Radiator Springs play a prank intended to frighten him. The joke involves the mysterious Ghostlight, a glowing blue light associated with local legend. The story combines the Cars characters’ roadside humor with a playful supernatural premise rather than continuing the main feature-film plot.

Mater and the Ghostlight was released in 2006 as a companion short to Cars. It was directed by John Lasseter and Dan Scanlon and included with home-video editions of the feature. The short is notable because it gives Radiator Springs its own spooky folklore.

The title is sometimes confused with Mater’s Tall Tales, the later series of shorts in which Mater tells exaggerated stories about his adventures. Mater and the Ghostlight is a separate, single short centered on the glowing apparition.