Sorry if this has been done before.... couldn't find anything.

My own personal favorite on both counts (scene, music score) is the scene in Will Smith's "Ali" when he's jogging through the streets of Kinshasa, Zaire.

The stark scenery of the poverty-stricken city, together with Ali's facial expressions as he sees drawings of himself on city street walls, is a very memorable scene.

But what really makes it my favorite is the song "Tomorrow", which accompanies the scene. It's a beautiful song... and fits the whole scene perfectly.