With the Avengers: Endgame spoiler ban now lifted, Chris Evans revealed he wasn't the only one to secretly film an "illegal" video on set of the climactic battle.
Last week, Guardians of the Galaxy actor Chris Pratt posted a similar clip - featuring an array of high-profile stars – on his Instagram page, closely followed by Elizabeth Olsen.
Evans' video is by and large the same. Actors Tessa Thompson (Valkyrie), Mark Ruffalo (Hulk) and Chadwick Boseman (Black Panther) can be spotted chilling in between takes on what is set to become the biggest-selling film of all time.
But it's Thor star Chris Hemsworth who steals the limelight: as his co-star hones in on him, the Australian actor stares back, and jokingly tells him to "f*** off."
The video is itself a huge spoiler for the film’s events, considering it features many of the stars whose characters seemingly died at the hands of Thanos at the end of Infinity War.
The clips come a fortnight after the twist-filled full film found its way onto streaming sites after just 12 hours of release in China.
Avengers: Endgame is in cinemas now. You can find our extensive ranking of every MCU film here.
