Black Panther's post-credits scene was originally a lot longer according to Sebastian Stan, who featured in the scene as a rehabilitated Bucky Barnes.
In a panel at Wizard World Portland, Stan revealed that the post-credits scene in Black Panther was initially well over eight minutes longer than what made the final cut. "There was something really actually funny about that scene," Stan said, according to CinemaBlend. "It's definitely better the way it is now, I think. But that scene was at least 8 more minutes long than what we saw."
"And it was like a more inquisitive Bucky," he continued. "He was kind of really going, 'Why do they call it these?' And [Shuri] was telling him a little about it, and they kind of walk in a direction, and then he walked over and started hanging out with elders and playing with the kids, but you don't see that."
In the final cut of the film, Bucky is no longer in the cryogenic sleep he was put in during the mid-credits scene of Captain America: Civil War to rid his mind of the Hydra programming that had transformed him into the formidable assassin, the Winter Soldier. Bucky is approached by some Wakandan children, who refer to him as the "White Wolf," and Shuri, who has been overseeing his rehabilitation.
While this longer version of the post-credits scene is not part of the deleted scenes in the home release of Black Panther, Stan showed interest in Marvel releasing a collection of deleted scenes at some point.
Directed by Ryan Coogler from a script he wrote with Joe Robert Cole, Black Panther stars Chadwick Boseman as T’Challa, Michael B. Jordan as Erik Killmonger, Lupita Nyong’o as Nakia, Daniel Kaluuya as W’Kabi, Letitia Wright as Shuri, Danai Gurira as Okoye, Angela Bassett as Ramonda, Martin Freeman as Everett K. Ross, Andy Serkis as Ulysses Klaue, Winston Duke as M’Baku and Forest Whitaker as Zuri. The film is currently still in theaters, with digital and 4K UHD copies releasing on May 8. Blu-Ray and DVD copies release May 15.