The song is: “To Build a Home” by The Cinematic Orchestra.
As of this morning, I don’t know for sure if this is an official Guinness ad.
If not, the brewer would be stupid to try to get it pulled.
Great job by the director/editor.
UPDATE: It’s a real ad, by BBDO New York.
4. UPDATE: Here’s the same basic idea from 2011 for Mother Dairy Chillz ice cream. Via India.
Tip via: @Dabang Trader.