Over the past few weeks, a Twitter account alleged to be run by Captain America: Civil War directors Joe and Anthony Russo has been running blurry, undistinguishable photographs that some people have taken to be leaks from their upcoming movie, including looks at Spider-Man's costume. Thing is, it's not -- according to an actual Marvel director.
Gunn, who has been known to tease fans on social media about his Marvel movie franchise Guardians of the Galaxy, is pretty matter-of-fact about the account being a hoax. Several Hollywood rumor sites reported on the account being verified to them by "trusted sources" including BirthMoviesDeath.
While it's possible Gunn could be mistaken, or his reputed source - Joe Russo - could be giving Gunn bad info, expect to see more of this type of thing when there is no consequences for passing along bad info to eager fans.