"Spider-Man: Homecoming" star Tom Holland has called Mark Ruffalo the ?worst Avengers secret keeper." Marvel Studios is known for shrouding its films in secrecy until their release. Recently, Thor actor Mark Ruffalo accidentally live-streamed "Thor: Ragnarok." Holland, who has been known to accidentally reveal details in the past, tweeted, "Now that @MarkRuffalo is officially the worst avengers secret keeper... can I get my script?" The actor previously revealed that he was not allowed to read the full 'Infinity War' script.