In 95’s “Before Sunrise” Ethan Hawke & Julie Delphy spend one romantic nite strolling around Vienna in conversation. A decade later they ramble thru Paris doing the same thing in “Before Sunset.” This time they’re on vacation in Greece with their kids, where the scenery is more limited. They spend an evening walking, while they discuss their relationship. If you’ve seen the others, you’ll find this one less romantic and more realistic, even difficult. Their performances are compellingly real, but the movie is more wordy and less charming.