- Acting in the Dark: According to Zendaya and Jacob Batalon during an appearance on Jimmy Kimmel Live, the scripts that they were given to rehearse with were partially redacted for spoilers. The actors weren't given all the information until the time came to film the scenes in question.
- Actor-Shared Background: It has become a Running Gag among Marvel Studios that Tom Holland is terrible at keeping secrets (in one "Thanos Demands Your Silence" spot for Avengers: Infinity War, he has his mouth duct-taped). Clearly that trend continues with his portrayal of Peter Parker, as now Nick Fury, Maria Hill, Quentin Beck, and MJ join Happy, Ned, May, Stephen Strange, and Carol Danvers on the list of people who know Peter is Spider-Man.
- Ascended Fanon: Post-Infinity War, Marvel went out of its way to officially title Thanos's culling of half the universe as "The Decimation". In the second trailer for this film however, Nick Fury explicitly refers to the event as "The Snap", which is what MCU fans have named it ever since Infinity War came out.
- Dawson Casting: With the exceptions of Angourie Rice and Abraham Attah (both 18 at the time of the film's release), all of the high school-aged characters are played by older actors. The most extreme case is Remy Hii, who is in his early 30s.
- Fake American:
- Tom Holland as always is a Brit playing Spider-Man
- Angourie Rice, Australian, as Betty Brant.
- Remy Hii, Chinese-Australian, playing Brad Davis.
- Executive Meddling: Minor example, but according to Vanity Fair, Marvel Studios and Sony clashed over the film's release date, as Marvel felt that the movie coming so soon after Avengers: Endgame meant that its marketing would spoil the fact that Peter Parker (and by extension, the other dead heroes like Black Panther and Doctor Strange) would somehow be returned to life. Even if their survival was seen as a Foregone Conclusion by many, Marvel was not pleased about the air of secrecy around Endgame being partially undone like that. Sony felt that they had no choice since this was a major tentpole release and they can't under-promote it, and besides, it was Marvel's decision to include Spider-Man and others among the dusted to start with, knowing fully well that there would be a Spider-Man movie right after that.
- Flip-Flop of God:
- Kevin Feige was absolutely insistent upon the fact that this was the first Marvel movie set after Avengers: Endgame prior to the release of Avengers: Infinity War. Once that movie came out and killed Spider-Man, he's since stated that he's not sure when it takes place, seemingly for the purpose of avoiding spoiling what happens in Avengers: Endgame.
- Following the end of Avengers: Infinity War, the Russo Brothers claimed that Aunt May was one of the survivors of the Decimation. After the release of the first full trailer for Far From Home, director Jon Watts instead claimed that Aunt May was indeed a victim.
- Despite early sources saying Vulture and Scorpion would reappear, the creatives involved with the film denied this.
- I Knew It!:
- A number of fans predicted that MJ would figure out Peter's Secret Identity on her own, which seems to have been confirmed with the second trailer.
- The time travel in Endgame led to theories that the alternate timelines the Avengers created would lead to the The Multiverse. This is confirmed in the second trailer, though Nick Fury implies it happened as a result of the Decimation and not time travel.
- Jossed: Following Avengers: Infinity War, a not insignificant number of fans, and even outlets, believed that the second MCU Spider-Man film would have Peter replaced by Miles Morales (partly because he was indirectly mentioned in Spider-Man: Homecoming). Tom Holland being the one to announce the film's title and confirm that this film is part of his contract shows that this was incorrect.
- Refitted for Sequel: Jon Watts originally wanted Nick Fury to appear in the first film as Peter's mentor, but Iron Man was later worked into the story instead given that the two characters had a story arc established by Captain America: Civil War. Now it has been stated that Fury will appear in this film.
- Release Date Change: Pushed up just three days, from July 5th, 2019 to July 2nd, 2019; it's been theorised that Sony wanted to avoid the 4th of July affecting the midnight screenings, as well as make use of the holiday week in general.
- Teasing Creator:
- Tom Holland played around with his reputation of accidentally spoiling Marvel movies while promoting them when he revealed the title on Instagram, acting as though he was unaware that he "accidentally" spoiled the movie's title.
- Sony Pictures drove mass speculation that the first trailer for the film would be released in mid-December after they formally submitted it for a rating, but ultimately the trailer was not attached to any of 2018's Christmas season releases, with Sony instead promoting Men in Black: International. It's been subsequently suggested that the studio decided against releasing a Far From Home trailer in order to avoid marginalizing the then-newly released Spider-Man: Into the Spider-Verse. The trailer would eventually be released on January 15th, slightly over a month after the release of Spider-Verse.
- What Could Have Been:
- Matt Damon reportedly turned down the part of Quentin Beck before Jake Gyllenhaal was cast. Damon previously had a cameo role in Thor: Ragnarok as an Asgardian actor portraying Loki.
- Sony had been developing a Mysterio standalone for their universe of movies spun off of Venom, but it appears to have been cancelled entirely after Marvel made their plans for the character clear.
- Similar to Ant-Man, this movie was meant to be the beginning of Phase Four, but was changed to be the final movie of Phase Three. Funnily enough, both movies are comedic Breather Episodes that came out after an Avengers movie starring a bug-themed superhero... Or rather, one bug-themed superhero and one arachnid-themed superhero.
Trivia / Spider-Man: Far From Home