LOTR theme ripped off from Sibelius' 3rd symphony......

[CelticRuins]

I definitely hear the Rohirrim arriving at Pelennor at the beginning. Other than that, the use of horns is similar but not close enough.

Everything is inspired by something. Nothing is ever original in this day and age.

 

[PantheraGem]

For what I think is an underrated piece, and huge inspiration to modern film composers, is Dvorak's 9th. The influence of the 4th movement alone, is apparent from the get-go.

Dvorak - Symphony No. 9 From the New World - 4th movement - YouTube

The entire symphony is pretty influential. Alan Silvestri's "CastAway" score is lifted almost intact as well.