Of Course Mark Ruffalo Spoiled A Huge 'Endgame' Moment Weeks Ago And Didn't Even Realize It

*Heads up for some major spoilers below! If you haven't seen Avengers: Endgame yet, proceed at your own risk.

Mark Ruffalo is a bit of a klutz, but we love him anyway.

The actor, best known these days for playing Bruce Banner/Hulk in the Avengers series––though you should do yourself a favor and check out his other stuff, like his Academy Award-nominated work, too––is a walking liability because he keeps spoiling big moments from the Marvel franchise.

Do ya'll remember when he spoiled a key moment from Thor: Ragnarok?

How about that time he spoiled another moment from Avengers: Infinity War?

Don Cheadle's Reaction to Mark Ruffalo Spoiling Avengers www.youtube.com

After those two notable blunders, everyone took precautions, but it appears their efforts were for naught, because despite a relatively unmarred publicity tour, Ruffalo still managed to spoil an important moment from Avengers: Endgame.

The incident took place back in early April, when during an interview with E! News, Ruffalo revealed that the Endgame script had several fake scenes and that the cast filmed scenes that the filmmakers never intended to put in the movie:

"I didn't even get a whole script for this movie. I don't know why. The script I did get had dummy scenes in it."

Ruffalo added that he read a scene in the script in which Steve Rogers/Captain America (played by actor Chris Evans) gets married to Peggy Carter (Haley Atwell). And that's exactly what happened in the film, by the way, right after Rogers does his part to return the Infinity Stones.

Evans, to his credit, caught Ruffalo's blunder, and managed to cover for him:

"Mark's a real liability. They have to throw Mark off the scent. You have zero cred. You have earned no trust in the Marvel universe. You, like, leak like a bodily function."

You can watch the interview for yourself here:

Chris Evans Says Mark Ruffalo Can't Be Trusted With Marvel Secrets | E! Red Carpet & Award Shows www.youtube.com

But now that the movie's out (and because the internet is full of detectives), people KNOW WHAT YOU DID, MARK.

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Oh, and someone else called it three weeks ago:

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A few days ago, Ruffalo even posted that he'd managed to survive the publicity tour without spoiling the film...none the wiser.

We're on to you, Mark. We're on to you.