When I get back from a festival, I'm often carrying a mixtape in my mind of songs that made an impression in the movies I saw. Often, these are songs I've heard dozens and dozens of times before, but their use in a new context makes them feel like I'm hearing them (or really noticing them) for the first time.
I could have chosen a few songs from Sundance, but "Love My Way" gets the nod. I don't want to say what movie it's in -- you could probably Google it if you're that interested -- but I now connect it strongly to the film. I don't think I'd ever picked up on its euphoric quality before.