Help me name this song!

[pitifulpaul1]

The opening melody goes like this, starting on middle C and going upward: C E G C E [back down to G] G C E, D F A D F [down to A] A D F, B D G D F (down to G) G D F, C E G C E G C E
I heard it in a movie but am unable to find it on the web after hours of searching.  The voice is soprano.  It sounds extremely familiar, and I'm sure most of you guys have heard it before.  Any help would be awesome.

Paul

[phil13]

Bach Prelude from Prelude and Fugue in C major, Book I of the Well-Tempered Clavier

Phil