Surprisingly the movie starts & roams around with the character which hated Mozart to the greatest extent, Salieri. Being a mediocre composer, Salieri used to envy Mozart, but he knew its the music of Mozart that reveals God, not Salieri's. The entire movie is the confession of Salieri who's old and now in an asylum and confessing to a priest.
The movie only showcased the 10 years of Mozart's life that he spent in Vienna (1781 - 1791). Awesome representation of their characters by Tom Hulce (Mozart) and F.Murray Abraham (Antonioni Salieri). The other most important character which actually was the most powerful but invisible is the music of Mozart. It just flowed from one opera to another and viewers just became ecstatic with each movement of the tunes.
Amadeus is not only treat to the eyes, but also a great treat to any music loving mind!
Recommended: Director's cut (3 hours)