Chloë Grace Moretz and Jamie Blackley have a troubled but frankly adorable relationship in "If I Stay," the new tearjerking drama based on Gayle Forman's 2009 young adult novel. They play inspired musicians whose courtship we watch in flashbacks since the movie is set after Moretz's character Mia gets into a terrible car wreck with her family. Their chemistry is palpable and fun, but can a movie with such a grim premise actually be a pleasure to film?

We caught up with Moretz and newcomer Blackley to discuss their rapport on set and whether Moretz feels at all comfortable holding a cello yet.