User blog comment:Nerakil/Bella's birth year?/@comment-3984470-20120415181833/@comment-3984470-20120424134808

Also, the movie switches things up with the year of her graduation. The Eclipse film takes place in 2010 (because there was something with Riley mentioning he disappeared recently, in 2010), but in the Breaking Dawn - Part 1 film, Bella and Edward got married in 2011, and they didn't wait a year, making them graduate in the class of 2011 rather than 2010.