After seeing and reading all of Nicholas Sparks's movies and books, I found the book version of Dear John to be the best. It detailed a love story that proved the effect of distance on a relationship, and how even the most perfect romances have their problems. The film quite accurately portrayed the love between John and Savannah, and the story was built up nicely. The sub plot in the book which concerns the relationship between John and his father is what makes the movie, and both actors really draw you into the movie.
However, although I am a fan of Amanda Seyfried, her acting in the movie appeared at times to be forced, and in one scene instead of crying (as she should be), she seemed to be laughing. The ending also seemed to change the true message that the book so fully explained, which was a shame. All in all though, Dear John was an enjoyable movie, but don't expect a repeat of the amazing adaptation that was The Notebook.