One Day follows Emma (Anne Hathaway) and Dexter (Jim Sturgess) every July 15 as their friendship progresses, digresses, and then progresses again over the course of 20 years. They spend the night together after their college graduation in 1988, sparking a friendly relationship rather than a romantic one. They lead separate lives throughout: Emma as a prude believing she can make a difference in the world, and Dexter as a reckless risk-taker who treats that world like his playground. In the middle of all this, two separate and quite opposite people grow as individuals. But just when you think One Day is heading toward a nauseatingly cheesy ending, a startling turn of events takes hold of the remaining 20 minutes or so and changes the entire movie, but not necessarily in a good way. Still, Hathaway and Sturgess do some terrific things with the mediocre plot.