In 2009, An Education, Scherfig's most critically lauded film, was released. Written by esteemed fiction author Nick Hornby, the movie was based on Journalist Lynn Barber's experiences as a teenager in post-war Britain. The film's story follows 16-year-old Jenny (played by Carey Mulligan) as she is picked up one rainy night by David (played by Peter Sarsgaard), and brought into the bustling and exciting London society. Centered on this tender and somewhat morally ambiguous romantic relationship between David and Jenny, the movie was hailed as being subtle and deliberate in its pacing and tone. Many reviewers noted the exceptional performance of Carey Mulligan as the protagonist. She went on to gain a nomination from the Academy Awards, as did the film itself (for Best Picture) and Nick Hornby (for his Adapted Screenplay). On making the film, Scherfig has talked about her focus on the theme of being an American teenager examined throughout the story, saying, "my guess is about America is that it’s this combination of innocence and freedom that attracts you. Here in Denmark, as well, it was more liberated than it is now, and was definitely more innocent and less dangerous. I mean, when I was a teenager, the world was a lot safer than it is now for my daughter as a teenager, which meant that I could have a lot more fun. It wasn’t risky the way it is now." She has also discussed the pleasures of working in a more collaborative spirit for this movie, commenting that the movie was "the same piece that we [were] all working on, and that was really important to me as a Director that everyone was making the same film, that everyone contributed to the package and tried to strengthen it and get as many facets as possible but not be over-inventive, [to] just tell the story as well as we possibly could." Coming off the success of An Education, Scherfig had many opportunities to develop a more expansive American career in filmmaking.