影片改编自同名小说，是以误解开始、交换日记为轴心展开的青春爱情故事。高桥饰演学校最受欢迎的男生濑户山润，樱田饰演过于察言观色的笨拙女生黑田希美。

影片改编自《昭和64年》原作者横山秀夫的同名小说《踏影而行》，在新海诚作品《秒速五厘米》中演唱主题曲的山崎将义与导演筱原哲雄时隔22年再次携手合作。影片主人公真壁修一（山崎将义饰）是深夜入室行窃的“专家”，学生时代的修一成绩优异，梦想是成为检察官。20年前的一场事件， 使得修一的人生道路发生了翻天覆地的改变，他从此走上了犯罪的道路。20年前在绝望的母亲的逼迫下，修一的双胞胎弟弟启二（北村匠海饰）与母亲一起自杀身亡。修一和弟弟启二在学生时代便和好友久子（尾野真千子饰）有着错综复杂的感情关系。久子一直都等待着修一能够重回正轨。而发小刑警的离奇死亡，纠缠着久子的跟踪狂，以及神秘女子叶子的存在，都让事情朝着意想不到的方向发展。

源起会议之国的小型讲座，一群伟人聚在一起，开了一个伟大的讨论会，伟大的主题是:“什么是诗意”。开场一个象征镜头，影机先是追踪着火车，开进小城，再走到大街小巷，然后停靠酒店，走进局促的会议室。接着，一批有头有脸的作家杀入镜头，阿城、王朔、马原、方方、余华、棉棉，从阿城的“诗意”考古开始，讲到“有钱就有诗意”。各抒己见的过程中，大家谈得性起，渐将诗意按压在自我之下。镜头有时溜出来，看另一种风景。一旁的会议策划人，在酒店偶遇旧爱，更能体味点点诗意。演员王彤和王志文，就演着也许由作家虚构的故事，他们的存在，比作家更真实。吕乐一个革命式的举动:拆走纪录片与剧情片框框，将两者放在同一议题与空间自由对话。

Wealthy Rollo Treadway (Buster Keaton) suddenly decides to propose to his neighbor across the street, Betsy O'Brien (Kathryn McGuire), and sends his servant to book passage for a honeymoon sea cruise to Honolulu. When Betsy rejects his sudden offer however, he decides to go on the trip anyway, boarding without delay that night. Because the pier number is partially covered, he ends up on the wrong ship, the Navigator, which Betsy's rich father (Frederick Vroom) has just sold to a small country at war.Agents for the other small nation in the conflict decide to set the ship adrift that same night. When Betsy's father checks up on the ship, he is captured and tied up by the saboteurs. Betsy hears his cry for help and boards the ship to look for him, just before it is cut loose.The Navigator drifts out into the Pacific Ocean. The two unwitting passengers eventually find each other. At first, they have great difficulty looking after themselves, but adapt after a few weeks. At one point, they sight a navy ship and hoist a brightly-colored flag, not realizing it signals that the ship is under quarantine. As a result, the other vessel turns away.Finally, the ship grounds itself near an inhabited tropical island and springs a leak. While Rollo dons a deep sea diving suit and submerges to patch the hole, the black natives canoe out and take Betsy captive. When Rollo emerges from the ocean, the natives are scared off, enabling him to rescue Betsy and take her back to the ship. The natives return and try to board the ship. After a fierce struggle, Rollo and Betsy try to escape in a small dinghy. It starts to sink, and the natives swiftly overtake them in their canoes. Just when all seems lost, a navy submarine surfaces right underneath them and they are saved.