This unorthodox, unforgettable film series by writer-director Richard Linklater is a true collaboration with his leading actors, Julie Delpy and Ethan Hawke. The films are about the love and evolving relationship between Delpy’s Celine and Hawke’s Jesse, a story first told in 1995’s Before Sunrise. Next, nine years later, came 2004’s Before Sunset, followed another nine years later by this 2013 continuation of their story. When we first saw them in this (so far) trilogy, they met on a train in Vienna. Now they’re at the end of a summer vacation in Greece, with lots of complicated issues and relationships confronting them as the trip nears its conclusion.