Trivia

Chloë Grace Moretz had to learn how to play cello. She was not a successful cello player, so they had a double play the cello and then added Chloë's head into the frame.

Jamie Blackley had recorded all of his songs and sang them live.

The source novel has a sequel "Where She Went," told from Adam's perspective.

R.J. Cutler had given all the cast a personal iPod featuring the songs that he thought each character would listen to. Chloë Grace Moretz got an iPod with Classical music while Jamie Blackley got an iPod with Rock music.

Chloë Grace Moretz, who had short blonde hair at the time, wore a wig to fit the role of the movie.