Once upon a time in the west - Sergio Leone (1968.
If nothing this is too long. The luxury to dwell is long gone in movies.
Interesting use of zoom, sometimes I think this is make for tv.
But too many characters, and too obscure motivation for many of them. Think this movie is important as a forerunner to something else or an end of a genre.
The use of wide screen is sometimes pure beauty like in the outdoor scenes, but in house it's just messy.
When it comes to Leone, Once upon a time in America is my all time favourite. Maybe the best gangster movie, second to Godfather.