Trivia: Paul Soles, who portrays the character Stanley, was the voice of Dr. Bruce Banner for the 1966 cartoon of The Incredible Hulk. The name "Stanley" is itself likely a reference to Hulk co-creator Stan Lee.
Trivia: Spoilers! Red Skull makes his long-awaited return to the MCU after his appearance in Captain America: The First Avenger. We discover that he's been guarding the soul stone as punishment, of sorts. However he's played by Ross Marquand, not Hugo Weaving.
Trivia: In the comics, Falcon has taken on the mantle of Captain America before.
Trivia: Samuel Jackson spotted that the eye patch his character wears in the movie switched eyes in the promotional posters announcing the movie in Los Angeles.
Trivia: When all the Avengers are attempting to lift Thor's hammer, Captain America is able to move it slightly. In the comics, Cap is one of the few characters noble enough to be able to lift Thor's hammer (notable others being Storm and Beta Ray Bill).
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: SPOILER: At the end on Nick Fury's gravestone, under his name is the passage from Ezekiel 25:17: "The path of the righteous man is beset..." This was the start of a big monologue made famous by Samuel L Jackson in Pulp Fiction. (01:59:25)
Trivia: Some of the members of Captain America's wartime elite squad are taken from Marvel Comics WWII based "Sgt Nick Fury and the Howling Commandos" - such as Dum Dum Duggan and Gabe Jones.
Trivia: While on the helicarrier, Tony Stark is wearing a Black Sabbath T-shirt, the band who released the song "Iron Man".
Trivia: Once again, Stan Lee makes his usual cameo. This time, he appears as a judge at the Christmas pageant. (01:03:50)
Trivia: During the film's climax, a young boy in an Iron Man mask is shown standing up to one of the Hammer drones with Iron Man swooping in and destroying the drone and giving the kid the credit. Following Spider-Man's inclusion in the Marvel Cinematic Universe, a fan theory suggested the young boy was Peter Parker, which Marvel Studios President Kevin Feige and Spider-Man actor Tom Holland would later retroactively confirm.
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: The first Marvel film released after Stan Lee's death. In tribute, the usual opening ident, which has the comic book characters in the Marvel Studios logo, instead shows multiple images of Stan Lee.
Trivia: Notice they don't play the lyrics with the "Iron Man" song in the closing credits. That's because the Black Sabbath song was not about the comic book Iron Man. There are many theories about what the song means, but the most popular is that it is about a man who travels to the future and sees the apocalypse. They couldn't use the lyrics to describe the Iron Man in the movie: He was turned to steel - In the great magnetic field - Where he traveled time - For the future of mankind. Now the time is here - For Iron Man to spread fear - Vengeance from the grave - Kills the people he once saved.
Trivia: Jennifer Connelly voices the "suit lady", the AI in Spider-Man's suit. In real life she's married to Paul Bettany, who voiced Jarvis, the AI in Iron Man's suit, and who later played Vision.