In the months leading up to the release of Avengers: Endgame13 Reasons Why star Katherine Langford was teased to have a secret role in the movie. After her role was eventually cut, it was revealed that she was meant play an older version of Tony Stark's daughter, Morgan. Here's why the scene never made it in the theatrical version of the film.

After Thanos acquired each Infinity Stone in Avengers: Infinity War and subsequently snapped away half the universal population, he found himself in a metaphysical way station. There, he ran into the younger version of the person he loved the most — his daughter, Gamora. After Tony undid Thanos' work with his own gauntlet, the sheer power was too much for him to handle. He died with Peter Parker and Pepper Potts at his side, but that's not the way that Tony's final moments were originally going to happen.

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Before his impending death, Tony was initially going to be transported to the same kind of Soul Stone station that Thanos found himself in. The Avenger was going to be greeted by an older version of his daughter, Morgan, who was played by Katherine Langford. While the scene never made it to the theatrical cut, it's available to watch on Disney+. When the father and daughter were reunited, Morgan revealed that the snap killed Tony. He was initially worried he made the wrong decision, but Morgan told him she was able to grow up happy and that she was proud of him and loved him. Upon hearing that, Tony was able to let go. The scene sounded like the perfect fit in theory, but directors Anthony and Joe Russo let it go for a simple reason — it just didn't resonate with audiences.

Endgame left Langford on the cutting room floor because audiences were confused upon seeing the scene at a test screening. The directors came to the conclusion that it was because audiences didn't have any emotional connection to the adult version of Morgan. That scene was the first moment that adult Morgan was introduced to the audience, so it made sense that they found Langford's sudden introduction to be jarring. The Russo Brothers realized that, while the idea was a good one, it slowed the plot and overcrowded an already busy movie.

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The idea could've seamlessly fit into the overall plot of Endgame if the Russos changed one detail — swap out adult Morgan for the five-year-old version of the character. The idea of an adult Morgan makes sense on paper, as seeing her grown and happy gave Tony the reassurance he needed to move on. But when Thanos went through this station, he saw a young version of Gamora, since those were his happiest memories of his daughter.

Tony didn't have memories of adult Morgan since he wasn't around for that part of her life, but Endgame beautifully established the fierce bond that Tony and Morgan shared in the first five years of her life. Instead of having an adult Morgan at the way station telling her dad she ended up okay, Endgame should have had a young Morgan convince her dad she was going to be fine. This could've allowed the Russo brothers to carry out that emotional moment in a way that might've resonated with audiences.

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