In the 1989 film Indiana Jones and the Last Crusade, who directed the Grail adventure?

Steven Spielberg directed the 1989 film Indiana Jones and the Last Crusade, whose story follows a search for the Holy Grail. It was the third released Indiana Jones feature and paired Indiana Jones with his father, Henry Jones Senior.

The film combines fictional archaeology, Arthurian legend, and the medieval Grail tradition. Its antagonist, Walter Donovan, seeks the vessel because the film depicts it as granting extraordinary longevity. The story also uses the fictional Grail diary and a series of tests in a temple beneath a Crusader castle.

George Lucas was an executive producer and a major creator of the Indiana Jones series, but Spielberg directed the film. This distinction is a common source of confusion because Lucas and Spielberg collaborated closely on the franchise.