- Backed by the Pentagon: Unlike the first film, which was this trope until Emmerich put Area 51 in the film, Resurgence was sponsored by the US military to hell and back, including in the marketing. The US Army ran their own ad campaign congruous to the film and used it extensively for recruiting purposes.
- Box Office Bomb: Budget, $165 million (not counting marketing costs). Box office, $103 million (domestic so far), $380 million (worldwide so far). While respectable by current standards, it doesn't reach the record-breaking totals the first film did ($817 million). The film also had the unfortunate timing to come out with a slew of other tentpoles such as Finding Dory, The BFG, The Legend of Tarzan, as well as being released in the UK around the time of the Brexit decision. (with London victim of destruction, to boot!)
- California Doubling: Most of the film was shot in New Mexico. And again Utah's Salt Flats are supposed to be near Area 51 in Nevada.
- Celebrity Paradox: Defied. David Levinson and Jeff Goldblum merely look alike, their existence isn't mutually exclusive.
- Celebrity Voice Actor: In the Japanese dub, Jake Morrison is voiced by Tatsuya Fujiwara, aka Shuya Nanahara.
- Franchise Killer: This remains to be seen, though producer Dean Devlin recently confided in a March 2018 interview that he currently has no plans for the long-rumored third film in the series.
- Missing Trailer Scene: Most of the shots in the first trailer (such as every shot on the moon) were either heavily altered in the final film or are replaced with alternate takes.
- The Other Darrin:
- Mae Whitman and Ross Bagley are replaced with Maika Monroe and Jessie Usher as the President's daughter Patricia and Steven and Jasmine's son Dylan respectively. No explanation was given for the change.
- In the Japanese dub, Motomu Kiyokawa replaced the late Ichirō Nagai as the dub voice of Julius Levinson.
- In the Spanish dub, Joan Massotkleiner replaced the late Jesús Nieto as Julius, Toni Avilés replaced Carolina Montijano as Jasmine Hiller, Joan Pera replaced Luis Varela as Dr. Okun, and Xadi Mouslemeni replaced Juan Antonio Castro as Dr. Isaacs.
- Saved from Development Hell: Plans for a sequel of the original movie have been in talks since the first movie became a smash hit back in 1996, but only until recently the director came with an idea on how to continue the story.
- Sequel Gap: 20 years. Roland Emmerich even noted it by saying that during the interim mankind would have rebuilt all the destroyed cities, and Time Dilation would allow the aliens to travel across the galaxy.
- Stillborn Franchise: Was widely expected to spawn a third film and perhaps even more movies over time, but its relatively poor critical and box office reception combined with Dean Devlin's aforementioned statements has cast huge doubts on the possibility of further sequels.
- Troubled Production: Nowhere as conflicted as the trope usually entails, but at one point, the production had to be shut down for a week due to the budget running out, with actors and crew essentially on standby until the studio refunded it.
- What Could Have Been:
- Director Roland Emmerich wanted Will Smith to return as his character, but he was written out for being too expensive.
- The original plan was that were going to be two sequels released with a year of difference, but in the end the studio only greenlit one movie.
- One early story for the film was quite different than what ended up on screen: According to an interview with Empire Magazine, it had humanity accidentally shoot down another alien ship, only to have the aliens land on the White House Lawn at the end of the film and say that they came in peace, which was supposedly the big theme of the film. Given how the sphere is introduced in the film, at least a germ of that idea remained.
- The Monumental Damage sequence involving Singapore and London was written as Dubai and Paris. The latter was changed following the November 2015 attacks.
- The movie was expected to be the first of three planned follow-up films that would continue the story from the original. Sadly, the movie was slammed by critics for being an elaborate but ultimately empty spectacle, and its lackluster receipts didn't indicate much audience interest in the movie or its potential sequels. According to Emmerich, he and the studio are at least considering turning to the small screen to carry out the next adventure.
Trivia / Independence Day: Resurgence