Ethan Hawke and Julie Delpy have reunited for Before Midnight, a sequel to 1995's Before Sunrise and 2004's Before Sunset, Digital Spy reported.

New pictures from the romantic drama have been released ahead of the film's premiere at this month's Sundance Film Festival.

Director Richard Linklater wrote the script for the film with Hawke and Delpy, this time bringing lovers Jesse and Celine back together in Greece.

The pair first met on a train to Budapest in Before Sunrise and spent just 24 hours together, before reuniting a decade later - in Vienna - in Before Sunset.

Hawke has said that the new film intends to be "ruthlessly honest" about the characters.

"Obviously we wanna make the fans happy, you know, and give them what they want. And at the same time, you can't make everybody happy. You just can't do it," he explained.

"So we have to try to just have the same attack and just kinda try to be ruthlessly honest and really tell the story about where we think these people are in their lives right now."