Harry Potter marathon, anyone?

I saw this and burst into tears (although that may have something to do with PMS, hormones, or similar). But if you are a Harry Potter fan, I dare you not to get a little choked up at this retrospective and with the knowledge of what's coming...

"Harry Potter | Marchin On" (Watch on YouTube)

I have no idea if this is old hat, but it's the first time I have seen it...