His works should be classified as "classic" imo
Ecstasy of Gold - from "The Good the Bad and the Ugly"
Once Upon a Time in the West
EPIC!!
Also, Jarre's theme from "Doctor Zhivago" should be in the top 100 also. Most majestic piece of music written for a motion picture imo
Also, Jerome Moross "The Big Country" from 1958.
Dimitri Tiomkin etc