Fan Community Nicknames: The series has an interesting case in which the fans refer to themselves by whichever faction in the books they identify themselves with. (Dauntless, Erudite, Amity, Abnegation, Candor). However, sometimes "Factionless" is used as a general term for all of them, based off the name of one of the fansites. The common overall term is "Initiates".
Follow the Leader: Follows the success of The Hunger Games, being a Young AdultDystopia novel with a female lead and an emphasis on romance. Also holds to a similar structure: 16-year old Action Girl protagonist, present-tense first-person narration, love interest (though a surprising lack of a love triangle), and angst. The novels also have covers featuring circular emblems reminiscent of the Mockingjay pin.
What Could Have Been: The books were originally going to be written from Four's perspective. In a prequel novel following his transfer to Dauntless, a handful of the original scenes from his POV were included.
Theo James opted not to bulk up too much, feeling a slender and athletic build was more suited for Four.
In The Divergent Series: Allegiant Christina controls her drones with her right hand, when everyone else uses their left. This is due to Zoe Kravitz being left-handed.
Awesome, Dear Boy: How did Shailene Woodley convince her friend Miles Teller to take the role of Peter? By saying he'd get to punch her in the face.
Blooper: In the first film, the scoreboard spells Tris's name as "Triss".
Box Office Bomb: The Divergent Series: Allegiant — Budget, $110 million. Box office, $65,872,818 (domestic), $159,928,683 (worldwide). This resulted in the final film being planned as a TV movie, before getting cancelled completely.
California Doubling: Averted in Divergent - as it was shot almost entirely on location in Chicago. The Divergent Series: Insurgent and The Divergent Series: Allegiant were shot in Atlanta for the scenes outside Chicago.
Cast the Expert: Theo James is a trained boxer, so already had some experience with combat sports.
Miles Teller said he only took the role for "business reasons" and that it made him feel "dead inside". He had to do a rather large Verbal Backspace when the sequels were greenlit.
Shailene Woodley has hinted that she didn't like the direction The Divergent Series: Insurgent went in, due to the film differing so much from Neil Burger's original vision. Shailene also expressed her distaste for the notion of turning the last film into a Made-for-TV Movie, feeling the franchise deserves "its rightful end".
Creator Cameo: Author of the book series Veronica Roth has a cameo during the zipline scene in Divergent. She's the first person to come through the door onto the roof.
Pretty much every teen in the series is played by an actor well into their 20's. The only one who's closest to their characters' age is 16-year-old Caleb, who's portrayed by then-19-year-old Ansel Elgort.
18-year-old Four is played by 28-year-old Theo James. Word of God specifically cast the latter due to Ability over Appearance, but it's especially egregious in The Divergent Series: Allegiant where he was now thirty. Eric, who's in Four's generation, also counts, being played by 27-year-old Jai Courtney. They left the two's ages deliberately vague as a result.
16-year-old Tris is played by 23-year-old Shailene Woodley. Keep in mind that she's supposed to be the younger non-twin sister of Caleb (though no more than eleven months, since they partake in the same Aptitude Test), and yet Ms. Woodley is four years older than Mr. Elgort.
Not to mention Tris' fellow 16-year-old colleagues: Al (played by Christian Madsen, who was 22), Christina and Will (Zoë Kravitz and Ben Llyod-Hughes, respectively, who were both 26), and Peter (Miles Teller, who was 28).
The Divergent Series: Insurgent adds more Dawsons into the "16-year-old" lineup: Marlene and Uriah (Suki Waterhouse and Keiynan Lonsdale, respectively, 22) and Lynn (Rosa Salazar, 29).
During the first Training Montage, Peter brags about his shooting accuracy only to get put in his place by Four. The latter also ignores Tris when she asks for shooting advice. This adds a little more meaning to Tris's second Training Montage where Four does offer her advice - and it also explains why she is slightly cold to him when he does.
The sequence involving Edward getting stabbed in the eye. Tris goes to Four afterwards and he pretends to not care, but changes his tune as soon as he knows Eric isn't listening. This emphasises that the Dauntless rules are changing.
Tris tries to comfort Al privately about his fear of being cut. He bluntly tells her "I just hate anyone who's better than me."
The visiting day sequence where Natalie comes to see Tris, telling her to eat some chocolate cake for her. This segues to Max explaining how the fear training will work.
In Insurgent - The Ultimate Behind the Scenes Access feature on the Blu-ray, it's revealed that the scene in which Tris, Four, and the rest of the Dauntless leave the Candor HQ was supposed to be a little longer. In the film, it ends with Tris glancing back at their army of fellow Dauntless descending Candor's front steps; in the behind-the-scenes featurette it's extended slightly, with Tris turning back and exchanging some dialogue with Four.
Tris: "You said you didn't trust your mother. What changed?"
Four: "Everything changed."
In another small featurette detailing the making of Insurgent, a shot of Jeanine walking down a corridor in Erudite headquarters with several guards is shown. This shot is not present in the final film.
Based on some behind-the-scenes photos and featurettes, as well as some noticeable scenes and shots shown in trailers that were absent in the final cut, it's safe to assume that Allegiant has deleted scenes as well.
It appears as though a love scene between Tris and Four in an overgrown house was either cut, or reshot/relocated using CGI to make it atop a skyscraper overlooking Chicago.
Trailer shots which detail the heroes making their way through a canyon (after scaling the wall) are missing entirely.
The riot scenes near the beginning of the film in Factionless appear to have been trimmed. The faction bowls are visible (indicating a scene in which they were destoyed may have been deleted), and several lines from Evelyn are missing.
Evelyn: "People think walls seperate us. But they also protect us. Those people out there kept us in a cage for 200 years. That is not someone I want to engage with!"
Multiple scenes detailing the activities of the Bureau and Providence appear to have been deleted or trimmed. A scene in which David explains that they're shutting down Chicago to Tris in the surveillance pod, is missing from the film. In addition, several lines missing from the film that are shown in the trailers, come from the leaders at Providence questioning the need to continue the Chicago experiment, and inform Tris that they will erase its population. This is bizarre, as it contradicts the theatrical release's reveal that Providence has no control over Chicago, and also clashes with the moment where Tris realises that David plans to erase the population in secret. This smacks of either clever editing by the marketing department intending to mislead the audience, or there's more going on behind the scenes than we know.
Philip: "Is it worth sustaining this population that's determined to destroy themselves?"
David: "They're shutting us down."
Unnamed Providence Leader: "Chicago will be erased."
It also seems as though Johanna, Uriah and the 'Allegiant' had a bigger intended role in the film, as multiple scenes and shots of them (such as Johanna descending stairs inside their hideout, and scenes in their camp during the final battle with Evelyn's soldiers) are cut from the final film. A scene with Christina and Tris talking to Johanna was also deleted.
Christina: "This isn't us against us. This is us against people on the other side of that wall."
Dyeing for Your Art: For Divergent, Shailene Woodley had her dark brown hair lightened to blonde. And for the second film she had cut her hair for The Fault in Our Stars and didn't have time to grow it again. As Tris gets an Important Haircut in the books, Shailene opted to cut her hair into a pixie rather than wear a wig to match the book (where Tris only cuts it to chin-length). By the third film, the hair is chin-length.
Enforced Method Acting: Kate Winslet came onto production a little later than everyone else, and kept her distance from the younger actors at first. The result was that she came across as aloof and the cast were intimidated by her.
Genre-Killer: The box office failure of Allegiant ended the Movie Multipack trend, judging by the Avengers: Infinity War and Justice League movies being re-titled to remove the words "Part 1" and "Part 2" and Maze Runner: The Death Cure not being split. In the case of Avengers, the movies in question were also re-written to each stand on their own, despite forming part of the same story. The genre had already been coasting after the lukewarm reception to the two-part The Hunger Games: Mockingjay films, and Allegiant was originally set to have a Part 1 and Part 2 title - but changed the second part to Ascendant.
Hide Your Pregnancy: Kate Winslet was five months pregnant while shooting, so she was mostly only shot from the waist up. In wider shots, she's usually carrying a folder or iPad in front of her bump.
The main villain is being played by Kate Winslet, primarily known for playing romantic leads. She also tends to do a lot of period pieces, so a movie set in a dystopian future seems out of place for her. According to her, she took the role partially because she wanted to do something drastically different.
Due to Theo James being significantly older than his character Four, this is the result with Fours mother Evelyn. Naomi Watts who plays Evelyn is sixteen years older than James. Evelyn does at least say she was young when she left Marcus.
Ansel Elgort plays the older Prior sibling despite being four years younger than Shailene Woodley who plays his sister.
Promoted Fanboy: Octavia Spencer (Johanna) describes herself as "a huge fangirl of the books" and saw the first film twice in one weekend.
Scapegoat Creator: Robert Schwentke initially received the brunt of the criticism (and blame) for the sequels' deviation from the source material and the films' rapidly declining quality. The blame however slightly shifted to the studio, Lionsgate, as their CEO Jon Feltheimer revealed that they had rushed the third film ''Allegiant'' into production to "hit a date". It's also noteworthy that the producers of the series, Douglas Wick and Lucy Fisher actually allowed Schwentke to deviate from the original director's (Neil Burger's) vision, effectively encouraging him to make the many creative decisions that fans were displeased with.
So My Kids Can Watch: Kate Winslet played Jeannine partially for this reason, joking that it's the one film of hers that her kids won't have to see her naked in. She also joked that her kids became very cool at school when word got out that their mother was Jeannine.
Throw It In!: The sound Peter makes when Tris hits him in their fight? Shailene Woodley actually punched Miles Teller in the throat. She had been reluctant to hit him, so he told her to go as hard as possible.
Miles Teller auditioned for the role of Four, but producers thought he was a better fit for Eric. He turned it down, feeling he couldn't be intimidating against Theo James. Shailene Woodley personally persuaded him to take the role of Peter instead. Jeremy Irvine turned down the role of Four because he didn't want to be a Teen Idol.
A love scene was filmed between Tris and Four, but cut to preserve the PG-13 rating. The Insurgent film added one in before Tris leaves the Factionless camp.
Similarly Edward being stabbed in the eye was also filmed, but cut to avoid an R rating. Word of God also says that it interrupted the flow of the scene anyway. Edward was also meant to appear in the remaining films, but his actor dropped out to do another film. As a result the character Edgar played by Jonny Weston was created to fill his role.
Jeannine was meant to be killed in Insurgent by Tris. But the filmmakers didn't like the idea of the protagonist shooting someone in cold blood - so Evelyn shoots her in prison, effectively swapping one villain out for another.
Kate Winslet wanted to return for The Divergent Series: Allegiant and let the filmmakers know she was available to cameo. They ultimately decided against it.
Neil Burger was to direct all the movies. But, overwhelmed by post production commitments to Divergent, he backed out of The Divergent Series: Insurgent (which was greenlit hurriedly after high advance ticket sales).
Similarly, Insurgent and Allegiant director Robert Schwentke was supposed to also close off the franchise by directing Ascendant (a.k.a Allegiant - Part 2). He opted out however, with reports citing that he "needed time with his family". Later reports announced however that (similarly to Burger) he was exhausted with directing the two preceding films back to back, and was also rumored to be having difficulties onset with Shailene Woodley - who was apparently unhappy with the direction he and the writers were taking the franchise in.
Lee Toland Krieger was hired to direct Ascendant after Schwentke's departure. However after the box office failure of Allegiant, and no recent news about the film's apparent TV debut as of July 2018, it's likely that the film is in production limbo and Krieger's finale for the series may never materialize.