Famously, during the world premiere of the film, Ruffalo accidentally live-streamed the first 15 minutes or so while his phone was in his pocket.
The actor later opened up about his fear of getting fired due to his honest mistake, making the Russo Brothers’ tweets funny little jabs at him.
Of course, considering the unknown fate of Bruce Banner and the rest of the Avengers in the upcoming sequel, who knows?
Mark Ruffalo likely didn’t actually spoil anything on Jimmy Fallon, but he just can’t seem to live down that hilarious Thor: Ragnarok spoiler fail following him into Avengers 4 a little over a year later.