What Musical Composition?

What musical composition from one of Errol’s greatest films was used very prominently in other top films?

1) Beethoven had previously performed the composition.

2) Used in the films of other cinematic legends.

3) Most notably in films featuring megastar contemporaries of Errol’s.

4) By multiple studios.

5) Used previously to Errol’s film, in a very popular movie, with a Golden Age immortal.

6) Used in several major films subsequent to Errol’s.

7) Also notably used in a movie subsequent to Errol’s, starring a contemporary Hollywood superstar, in a film regarded by many as one of the greatest movies ever made.

— Tim