So many I don't know where to start. But a few quick mentions:

1. There's a little-known -- probably few watched it -- called "A Twist Of Fate". What it was was a retelling of Silas Marner with Steve Martin in the starring role. Anyway, there's a late night scene wherein Martin is sitting in his quiet house and he's quietly clawhammering out "The Bonnie Banks o' Loch Lomond" on his banjo. It's a wonderful scene in a movie more people should have seen.

2. From the more recent "Once" -- the initial songwriter meets songwriter scene at the music store piano seen here. Movie meets music just doesn't get any better that this.

3. This scene was one of the most joyful bits of movie I've ever seen. It was corny, funny, and utterly winsome.