With Avengers: Endgame now available on home video via digital HD, new information about the biggest film in cinema history is coming to light. Case in point: the commentary track recorded by screenwriters Christopher Markus and Stephen McFeely reveals much different original plans for Professor Hulk's debut.

In their home video commentary for Endgame, Markus and McFeely reveal that Professor Hulk, the merged personality between Bruce Banner and the Hulk, was originally planned to make his debut during the Battle of Wakanda in Avengers: Infinity War during Banner's confrontation with the Black Order member Cull Obsidian.

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"We called him Smart Hulk throughout the shoot. The creation of Smart Hulk, used to take place in Infinity War," McFeely explained. "He was fighting in Wakanda. The whole arc of the story was Banner and Hulk were not getting along. Hulk wouldn't come out to help him. And at his hour of greatest need, they make some sort of compromise, and Smart Hulk rips out of the [Hulkbuster] armor and beats the crap out of Cull Obsidian and destroys him. It was pretty clear that the movie could not handle this weird success. The movie needed to just stay in its succession of losses in the third act, which meant some hustling on the part of VFX late in the game."

Test audiences reportedly did not react well to the sudden transformation, and Infinity War co-director Joe Russo agreed that too much occurred in the climax of the film. As a result, Professor Hulk's debut was pushed back to after the five-year time jump seen during Endgame.

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"Cutting that out was a decision made during the editing process on Infinity War, by which point we had already shot Endgame," observed Markus.

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 and arrives on Blu-ray and 4K UHD on Aug. 13.

Via Gamespot