The Avengers: Endgame cast were just as surprised as fans about how the film played out.
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Actor Jeremy Renner recently discussed the unique filming experience.
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In the MCU, Renner portrays Clint Barton aka. Hawkeye.
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The Russo brothers didn't always provide full context about Avengers: Endgame scenes while filming.
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As a result, many cast members didn't exactly know how scenes would play out.
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The Russo Brothers wrote a letter to fans and asked them not to spoil Avengers: Endgame.
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Avengers: Endgame is already one of the highest-grossing films ever.
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