Based on the massive scale of the final battle for Avengers: Endgame, it's quite an accomplishment that it runs as smoothly as it does. However, one eagle-eyed fan found a small mistake that got lost in all the action -- until now.

As pointed out by a user on Reddit, there are two Cull Obsidians in the film's climactic battle. "Fun little detail: Cap hits Cull Obsidian with the hammer at the start of the battle," the user writers. "The camera continues to pan through the battle until we see Cull Obsidian again further away from where he was, tussling with Korg and Drax."

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Mistakes happen and, with a fight as large as this one, it's not entirely surprising this fell through the cracks. Still, the small error hardly detracts from the battle, which continues to flow smoothly from that point onward.

Directed by Joe and Anthony Russo, Avengers: Endgame stars Robert Downey Jr. as Iron Man, Chris Evans as Captain America, Mark Ruffalo as Bruce Banner, Chris Hemsworth as Thor, Scarlett Johansson as Black Widow, Jeremy Renner as Hawkeye, Brie Larson as Captain Marvel, Paul Rudd as Ant-Man, Don Cheadle as War Machine, Karen Gillan as Nebula, Danai Gurira as Okoye and Bradley Cooper as Rocket, with Gwyneth Paltrow Pepper Potts, Jon Favreau as Happy Hogan, Benedict Wong as Wong, Tessa Thompson as Valkyrie and Josh Brolin as Thanos. The film is now available on Digital HD, Blu-ray and 4K UHD.

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