Trivia: SPOILER: Although it was the film's worst kept secret, whenever asked, Andrew Garfield would deny, sometimes vehemently, that he would be appearing in it.
Trivia: After 13 years and 26 films, this is the first movie in the Marvel Cinematic Universe to receive a "rotten" rating from Rotten Tomatoes upon release. This is somewhat ironic given that there were reports that Marvel considered it the best film they had made yet, and Marvel Studios President Kevin Feige felt it could be a nominee for Best Picture at the Oscars, particularly as its director Chloé Zhao had recently won the Best Director Oscar for Nomadland, which also won Best Picture.
Trivia: When Yelena is talking about Alexei wanting to relive his glory days as the Red Guardian, she sarcastically calls him Crimson Dynamo. In the comics, Crimson Dynamo is one of Iron Man's enemies. Ivan Vanko from Iron Man 2 was partly based on this character.
Trivia: After the ending credits role, stay tuned for a scene extra with Bruce Banner and Captain Marvel as they try to decipher the origin of the homing beacon the 10 rings are giving off.