The piece revealed that star Chloë Grace Moretz learned to play the cello for the film, while co-star Jamie Blackley sang all of his songs live.
The featurette introduced moviegoers not only to the film’s central story and main characters, but also its wide sampling of popular music, including M83’s Outro,A Great Big World (featuring Christina Aguilera), Say Something and the cast’s cover of The Smashing Pumpkins’ Today.