https://www.cnet.com/news/mark-hamill-and-guardians-of-the-galaxy-director-james-gunn-meet/

Over the holiday weekend, Mark Hamill, who plays Luke Skywalker in the Star Wars series, finally met up with his Malibu, California, neighbor, Guardians of the Galaxy director James Gunn. But this was no simple Memorial Day barbecue: it was a fan-driven meetup that sent ripples through the social media galaxy, and could possibly affect the third Guardians movie.

Hamill offered more details on his Twitter account. Apparently the gathering, at Hamill's home, celebrated the first birthday of Ant-Man actor David Dastmalchian's daughter. Among other things, it featured homemade cobbler made by Hamill's daughter, Chelsea.