Bob Strauss May 7, 2021Updated: May 7, 2021, 10:23 am Josh Duhamel plays the Utopian, who leads the Union of Justice, in “Jupiter’s Legacy.” The show premieres Friday, May 7, on Netflix. Photo: Adam Rose / Netflix Does the world need another complicated, character-packed superhero series? Especially one that looks as derivative and humorless as “Jupiter’s Legacy”? The answer is maybe. What might make this one worth devoting eight hours to is how it tackles issues that come with great power. That responsibility is only a starting point for the show’ thoughtful, anguished inquiry. The show is comic book writer Mark Millar’s (Kick-Ass, Kingsman, Marvel’s Civil War) first big production from his massive deal with Netflix, premiering Friday, May 7. And sure, it foregrounds generational conflict like Amazon’s animated hit “Invincible” and boasts similar, if mercifully less, of that show’s graphic violence. It jumps back and forth through time, like “Watchmen.” It’s got at least one supergal who’s as self-destructive as Jessica Jones, maybe more so, and the Justice League/Teen Titans/X-Men echoes can grow deafening at times.