Trivia: In 1970 Steve wears a uniform with the name Roscoe on it. In the comics Roscoe Simons was a soldier who took up the mantle of Captain America and was killed by Red Skull.
Trivia: Steve Rogers says to Bucky Barnes at the end "Don't do anything stupid until I get back." Bucky replies "How can I, when you're taking all the stupid with you?" They said the same thing to each other in Captain America: The First Avenger.
Trivia: The film took inspiration from the Star Trek saga - the last episode of Star Trek Voyager was named Endgame as well and involved time travel.
Suggested correction: It should also be pointed out that "Endgame" as a term has been around a long time. It's a chess term and refers to the final stage of a process or event. "Voyager" might have taken inspiration from Marvel themselves since Marvel Comics have had at least 16 stories titled "Endgame", starting in the 60's. Stories involving The Mighty Avengers, Iron Man, Captain America, Black Panther, Guardians of the Galaxy, Ant-Man, The Incredible Hulk, and Thanos.
Suggested correction: Not to be confrontational, but has this actually been confirmed? As in, did any of the filmmakers say that they were inspired by "Star Trek: Voyager"? The fact that the word "Endgame" appears in both titles doesn't mean that one was inspired by the other.
It was confirmed by the producers.
Kevin Feige confirmed that Star Trek: The Next Generation inspired elements of the film. At no time did he mention Star Trek: Voyager.
The episode is also about time travel. Caption Janeway goes back in time to get her ship home faster and save member of her crew.
The fact that 2 things involving time travel also involve the term "endgame" does not mean that one inspired the other.
Trivia: Prior to the film's release, there was a tongue-in-cheek fan theory that speculated the Avengers would defeat Thanos by having Ant-Man shrink down, crawl into Thanos' anus, and then expand. This theory became so widespread that the Russo brothers and even Neil deGrasse Tyson commented on it and why it wouldn't work. Paul Rudd and Evangeline Lilly also briefly discussed the theory in character as Scott Lang and Hope Van Dyne, respectively.
Trivia: "New Asgard" is based in Tonsberg, Norway, but the filming location is in Scotland. As nods to that, the beer Thor's drinking is a Scottish brand and there's a bottle of Irn Bru on the windowsill.
Trivia: Captain America, Thor and Iron Man each have a scene featuring a cameo by directors of their most critically acclaimed solo movies - Cap talking at the support group to Joe Russo (director of Winter Soldier and Civil War), Thor hanging out with Korg (Taika Waititi, director of Ragnarok), and Iron Man with Happy Hogan (Jon Favreau, director of Iron Man 1 and 2).
Trivia: At 181 minutes, "Avengers: Endgame" is the longest theatrical-released superhero movie of all time. (Not counting extended home-video releases).
Trivia: Before settling on saying "And I am Iron Man," the writers toyed with having Tony Stark simply telling Thanos to fuck off, even filming multiple variations of it. Aside from the former line being more poetic, they felt ending the moment on a curse word wasn't the best option, and Disney may have vetoed it anyway.