Well before Avengers: Infinity War came out and changed the Marvel Cinematic Universe as we know it, Mark Ruffalo did his level best to spoil the movie for everyone while Don Cheadle watched.
By now, the clip from last summer's D23 Expo is infamous among MCU fans. Cheadle and Ruffalo were being interviewed by Good Morning America, and while plugging his then-upcoming film Thor: Ragnarok, Ruffalo accidentally said a little too much about Infinity War.
“Wait until you see this next one, half — everybody dies,” he said, prompting Don Cheadle to lose it more than a little bit. Ruffalo's shift from "half" to "everybody" was meant as some kind of "I'm just kidding" cover, but Cheadle's expression told the story, and Ruffalo's place among the most prominent Marvel spoilers — including Chris Pratt and Tom Holland — was secure.
Cheadle was on Jimmy Kimmel Live! Thursday night, and because Kimmel loves laughing at awkward moments, he decided to cue up that clip once more so that Cheadle could react to it on television. At first, Cheadle just had his head in his hands, still amazed that Ruffalo let something that big slip. Then he provided a bit of color commentary, calling particular attention to Ruffalo's mid-sentence shift.
"Well, if you listen very closely, he actually started to say the absolute truth, and then had to try to say everybody after he almost said half," Cheadle said. "It was like... he just messed the whole thing up."
Kimmel followed up by asking if Cheadle and Ruffalo experienced any real fallout from Disney and Marvel after the interview, and while Cheadle said "Not really," he did joke that Ruffalo is now banned from doing any movie publicity at all.
"He's done. He's done. No, he's done," Cheadle said. "He can't do press for any movie, because he might talk about a Marvel movie, so he's just done."
Avengers: Infinity War is out on Blu-ray now, and the still-untitled sequel arrives next April. That leaves Ruffalo eight months to find some way to accidentally tell us how that one ends, too.