If you like costume dramas, then this movie is the costume drama of costume dramas.
The film, a great spectacle, is told from the point of view of Salieri - one of Mozart's peers, and is cleverly based around his envy of Mozart's god-given talent for music. How much of that is true or urban legend from 18th century Vienna, I don't know.
As well as his musical talents, Mozart's daily tribulations are focussed upon throughout the film - such as his run-ins with imperial and religious bureaucracies and his constant battle against poverty - these were the days when composers relied on live performances and patronage to make ends meet (although he does live in a rather sumptious apartment for much of the film). The legend's notoriously impish sense of humour is apparent throughout the film as well, but so is his phenomenal workrate. He's also a bit of a punter as he enjoys a drink and even has a billiards table installed in his flat (a historical accuracy).
The accompanying DVD commentary includes some interesting anecdotes - for example, the theatre in Prague that they used for filming was also in use during Mozart's time, and it was where Mozart conducted the world premiere of Don Giovanni in 1787 - at the exact same spot where Tom Hulce later stood.
Mozart was a genius and in hindsight can be seen as a prodigy and as something of a phenomenon. At nearly 3 hours, this is a long film but it's also Hollywood at its best and it's easy to see why this won so many Oscars. I have to confess that I'd never actually seen the original cut version, so I can't compare.
The 2 disc pack includes a 1 hour 'making of' documentary with contributions from all the big players and a 2 minute theatrical trailer. So, including the commentary, you're getting nearly 7 hours of material here to digest.
Definitely one for the DVD collection.