Chris Pratt Shares 'Really Illegal' Behind-The-Scenes Video from 'Avengers: Endgame'

And it features just about every famous face in the flick.

It looks like Chris Pratt is taking a rebellious leaf out of his Avenger character Star-Lord's book after the actor shared a "really illegal" behind-the-scenes snap of the Avengers: Endgame set.

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For the uninformed, fans of Marvel flicks are SUPER serious when it comes to spoilers -- especially for Endgame. If you don't believe me, check out this wild story about a guy in Hong Kong who was literally beaten up for yelling out Endgame spoilers outside the cinema. 

Anyway, due to the top-secret nature of the films, The Russo brothers made sure that no cast member posted anything about the hugely popular movie on social media -- which included footage from the set.

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Clearly taking his role as an intergalactic outlaw very seriously, Chris Pratt posted the footage to his 'gram showing a gaggle of stars on the Avengers set, which apparently was during the final battle.

The clip features a bunch of stars from the film including Dave Bautista, Don Cheadle, Elizabeth Olsen, Chris Evans, Paul Rudd, Jeremy Renner, Chadwick Boseman, Chris Hemsworth, Sebastian Stan,  Mark Ruffalo, Pom Klementieff, Danai Gurira, Robert Downey Jr. and Tom Holland -- with half the cast wearing elaborate makeup while still dressed in casual wear.

“This is a really illegal video,” Pratt said in the clip as he turns the camera on himself, while Chris Evans added, “Big trouble!” as he pretended to punch Pratt.

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"I remember being blown away in this moment on the @avengers set," Pratt wrote as the caption.

"Nobody was allowed to film anything on their phones. I said screw it. No rule was going to stop me from seizing this once in a lifetime opportunity to capture this collection of stars, a group that likely will never be in the same room again. We are so blessed."

Meanwhile, other stars from the blockbuster went in the complete opposite direction, with newcomer Brie Larson saying she was so scared about dropping spoilers that she basically has no photos or videos from her time on set.

“Since I am the newest (and most scared of spoiling) Avenger I have zero cute BTS from filming,” she wrote in an Instagram post while thanking fans for their support.

Avengers: Endgame has proved to be a massive box office success, raking in an eye-watering $1.2 billion on opening weekend alone.

Image: Getty