Jeffrey Boam in the context of "Indiana Jones and the Kingdom of the Crystal Skull"

Indiana Jones and the Last Crusade is a 1989 American action-adventure film directed by Steven Spielberg from a screenplay by Jeffrey Boam, based on a story by George Lucas and Menno Meyjes. It is the third installment in the Indiana Jones film series and the narrative sequel to Raiders of the Lost Ark (1981). Harrison Ford reprises his role as the titular character, while Sean Connery co-stars as his father. Other cast members featured include Alison Doody, Denholm Elliott, Julian Glover, River Phoenix and John Rhys-Davies. In the film, set in 1938, Indiana Jones searches for his father, a Holy Grail scholar, who has been kidnapped and held hostage by the Nazis while on a journey to find the Holy Grail.

After the criticism that Indiana Jones and the Temple of Doom (1984) received, Spielberg chose to make a more lighthearted film for the next installment, as well as bringing back several elements from Raiders of the Lost Ark. During the five years between Temple of Doom and The Last Crusade, he and executive producer Lucas reviewed several scripts before accepting Jeffrey Boam's. Filming locations included Spain, Italy, West Germany, Jordan, the United Kingdom, and the United States.