Fadac, I know the episide you're referring to: Indiana Jones and the Birth of the Blues. It was really great, and by the way, at the the end of that episode he's in his sixties, and he kills the bad guys by playing his saxophone, causing the snow to slide off of his roof and bury them. Talk about music that can move you!

LEJ, "Springtime for Hitler" was from the movie The Producers and yes, it was great! The Duelling Banjos scene in Deliverance was also very memorable for me, as was just about every scene in Music Man.

I was affected by the music all throughout the movie Amadeus, especially when Mozart instantly transforms Salieri's pedantic little march into a musical flight of fantasy, or when he's "forced" at a party to convert a piece into the style of JS Bach, and then suddenly, while being suspended upside down, to play the same piece he'd just composed -- backwards.

But to me, the most poweful use of music in any movie was what I heard in Lawrence of Arabia. There's a brilliantly directed moment in the beginning where Lawrence snuffs out a match with his fingers; the extinguished flame is suddenly replaced by the blazing sun in the desert, where the two men cross a vast sea of sand dunes and the powerful musical theme brings the power, the majesty and most of all, the magic, right to you.