Set the stage. Cover the political atmosphere in Europe at the end of the 18th century -- the stirrings of the French Revolution, England's loss of America, and explain how events influenced the decisions made about Mozart's contributions to the arts and his patronage.
Discuss the importance of operatic productions in the time of the Emperor Joseph and the great courts of Europe. Liken the support to finding financing for a film and how much of the content was ruled upon by those who held the purse strings -- more often than not, the king and his court.
Talk about adaptations in film. The basis for "Amadeus" was an adaptation of a stage play of the same title. Excerpts from the original -- most notably with Paul Scofield in the lead as Salieri -- are available online. Compare and contrast the dialog from the stage production with the condensed version that appears in the film.
Discuss the issues that are encountered with depicting a historical person within the context of a film. Talk about dramatic license and how it affects the telling of a biography and what sections of the film may be heightened for dramatic effect, most notably, Salieri's wearing of the costume mimicking Mozart's father.
Investigate the conflicts that Salieri demonstrates in the film when it comes to dealing with Mozart's talent. Ask your students if they could identify with having enormous admiration while at the same time being consumed by jealousy.