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Sadie Sink’s Secret Jean Grey Cameo Boosts $1.18 B Marvel Hit

8/7/2026

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Summary

Story summary

Sadie Sink appears as Jean Grey in Spider-Man: Brand New Day, a role hidden until the worldwide premiere.
Marvel Studios head Kevin Feige said the secrecy was meant to create an opening-weekend surprise.
The film has earned over $1.18 billion worldwide, becoming the year’s highest-grossing movie.
Singer Steve Lacy spoiled the Jean Grey cameo at the Los Angeles premiere on 27 July, calling her “the villain.”

History

Historical Context

In 2005 Marvel began producing its own films, secured a $525 million credit line in 2007 and launched the MCU with Iron Man in May 2008. Kevin Feige’s solo-film-then-crossover model, reinforced by the 2015 Sony-Marvel Spider-Man licensing deal, created a surprise-cameo playbook. Sadie Sink’s covert Jean Grey appearance in Spider-Man: Brand New Day, leaked by Steve Lacy at the July 27 premiere, follows that legacy.

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Story summary

Sadie Sink appears as Jean Grey in Spider-Man: Brand New Day, a role hidden until the worldwide premiere.
Marvel Studios head Kevin Feige said the secrecy was meant to create an opening-weekend surprise.
The film has earned over $1.18 billion worldwide, becoming the year’s highest-grossing movie.
Singer Steve Lacy spoiled the Jean Grey cameo at the Los Angeles premiere on 27 July, calling her “the villain.”

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