Can you identify this piece for me? classical musi

What's the piece that one hears in the first 40 seconds in this video? anyone knows? thanks!
I believe the familiar notes that you are reacting to are notes taken from Beethoven's Fifth Symphony.
I think it's the Olympic Theme Song titled "Bugler's Dream"? But since I know nothing about classical music, I'm sure I'm wrong.
It's called "Olympic Fanfare and Theme", composed by John WIlliams for the 1984 Olympic Games.
BTW Shazam app is a wonderful tool for identifying music when heard, but results for a lot of classical music with it are not always as reliable.