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.
Thanks Mofimadness! (apparently composed by John Williams :)
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.