It was a bowcaster-toting C-3P0 that gave it away.
Though the Star Wars franchise will likely never truly fade, many have felt the spirit fade in the wake of George Lucas' departure. An ironic twist of fate, given that Lucas' vision was often maligned at every turn, particularly where the prequel trilogy were concerned. Yet there was indeed something pure about Lucas' series, keeping in spirit with the expansive Star Wars Universe, which spawned entire novels, video games, and more. Of course, the entire extended universe was stricken from the canon upon Disney's arrival, which was the first of many contentious moments between the devoted fans and the new ownership.
Yet Star Wars remains an immensely viable property, and each of the Disney-released films has fared favorably at the box office, with The Force Awakens and The Last Jedi standing particularly tall. Now, with the concluding chapter of the "Skywalker Saga" set to arrive on December 20th, a newly leaked poster briefly served to stoke the hype. Depicting a plethora of characters, including Rey, Kylo Ren, Finn, Poe Dameon, a bowcaster-toting C-3PO, Chewbacca, and more, the poster looked legitimate enough to pass the test.
Unfortunately, Mark Hamill (who plays Luke Skywalker throughout the saga) came through to pop that particular balloon, dubbing it the "wonderful work of a passionate fan." He also looks to C-3PO's newfound love of advanced weaponry as a key exhibit, where questions of legitimacy are concerned. Either way, does the poster serve its intended purpose?