Channing Tatum and Amanda Seyfried in Dear JohnWell played, Nicholas Sparks.

The man known for reducing readers to weeping messes with his unapologetically romantic novels -- which are then adapted into movies, which in turn reduce moviegoers into weeping messes (see 'The Notebook' and 'Message in a Bottle' for examples) -- seems to have done it again with 'Dear John.' Watch the exclusive trailer after the jump.