Vice President Mike Pence announced on December 19 that personnel in the Space Force branch of the U.S. Armed Forces will be officially called Guardians, which prompted some wisecracking from writer-director James Gunn. Since Space Force’s new “Guardians” title overlaps with Gunn’s “Guardians of the Galaxy” franchise, the filmmaker shot back at the vice president on social media, writing: “Can we sue this dork?” Flash forward to this week and “Star Wars” legend Mark Hamill got in on the Space Force skewering. Responding to Gunn, Hamill quipped, “So they grab the ‘Guardians’ from your movies, they use the ‘Force’ from...