Mater and the Ghostlight (film) Mater, from Cars, is haunted by a mysterious blue light that teaches him not to play pranks on the other cars in Radiator Springs. Directed by John Lasseter and Dan Scanlon. Voices include Larry the Cable Guy (Mater), Owen Wilson (Lightning McQueen). 7 min. Created for the DVD release of Cars, premiering first in Australia on October 25, 2006, and in the U.S. on November 7.