Before "Charlie St. Cloud" became a summer blockbuster starring Zac Efron, it was a novel written by former NBC producer and Good Morning America executive producer Ben Sherwood. Sherwood spoke about his transition from producer to novelist to Diane Sawyer on her "World News Conversation." The way he described it, the success of his novel was based largely on luck, and on its universal themes of love and loss. Sherwood said that there was nothing he would have changed about the movie, and that he "wanted to hug every person involved in the project the entire way through."