Is Tris a brave, compassionate, sharp but self-doubting heroine who is worth rooting for, or is she an angsty, self-absorbed person with little human decency despite her upbringing, and some sort of constant mild concussion that blinds her to the bleedin' obvious?
Was Eric's eulogy to Albert a sincere Pet the Dog moment, or was it a lie simply to make himself look good? While Tris thinks it's the latter, Living Lie Detector Christina didn't point it out.
Ass Pull: Every single use of a magical serum to fix something in the plot. Need to mind control someone? There's a serum for that. Need someone to tell the truth? There's a serum for that, too! Need to erase someone's memories? Once more, there's a serum for that! There's even a death serum, if you need it. It might be written into the plot, but it seems suspicious that every time the characters need a quick fix to their problems someone created a serum to do it.
Base-Breaking Character: Al. Some fans were really sad that he died and felt his death was a tragic cautionary tale against withholding forgiveness. Other fans felt that he deserved to die and that Tris was right not to forgive him.
Cliché Storm: A big part of the reason for the backlash the series has gotten is that, to many readers, it doesn't seem to do much more than re-use the tropes that The Hunger Games used to much greater effect. Even the cover art looks similar.
Ho Yay: In the prequel novel, there's rather a lot of it between Four and his mentor Amar. Amar takes him under his wing as soon as he transfers to Dauntless and becomes his first friend. As Four isn't used to the Dauntless way of being so affectionate with each other, some of it does come across as a romantic subtext. What's more is that the portions of the novel where he helps Tris (because he's fallen in love with her) parallels how Amar helped him. When Amar shows up in Allegiant, he indeed confirms that he was interested in Four in a romantic way, but noticed that he didn't reciprocate his feelings.
It's Popular, Now It Sucks!: Even more so than The Hunger Games, as The Hunger Games is still typically considered to be great dystopian literature, whereas it's harder nowadays to find people who will openly admit to liking Divergent despite it being a major critical and commercial success initially.
Misaimed Fandom: All of the "which faction are you" quizzes and people proudly discussing which faction they are, considering a major part of the novel is that the faction system is oppressive and wrong towards Divergents and Factionless, and that it ultimately turns out all five factions are failed genetic experiments whose various flaws caused the apocalypse.
Numerous candidates for when Peter crossed this. Shining examples are how he stabbed Edward in the eye while he was sleeping. Then there was the time he hung Tris over the chasm (claimed it was just to scare her) and groped her chest, while mocking her for "feeling twelve".
For Caleb, betraying his family to the Erudite. The full information about the outside world and what Jeanine told him has yet to be disclosed. But regardless, it doesn't change the fact that he sided with the faction that killed his parents and helped with the capture and attempted execution of his own sister.
Rewatch Bonus: If one reads the prequel from Four's perspective, him shooting Eric in Insurgent now carries a lot more weight. It's revealed that Four's mentor Amar was also a Divergent. Eric, who was a spy for Erudite, told Jeanine this and Amar was found dead. Four knew this all along but was powerless to bust Eric.
If Peter, Molly, and Drew do something to irritate you, just breathe a sigh of relief that they'll be humiliated for it later by Tris' hands.
Marcus gets one in Insurgent when Tobias gets laughed at for fearing him. So, to prove that he's no coward, he gives Marcus a well-deserved beat-down.
They Wasted a Perfectly Good Character: How some people feel about Tori Wu in Allegiant. She is among those who get to the wall, but is killed before she can escape with everyone else. And this is the start of the book, meaning she gets to have no impact on the plot at all - other than setting up an Anyone Can Die situation. She becomes a Forgotten Fallen Friend quite quickly too.
Wangst: Depending on the reader, Tris's endless agonization over everything might be off-putting.
Four. He's actually an Abnegation transfer named Tobias who left because his father, Marcus, constantly abused him.
Al is arguably the biggest one in the entire series. He didn't belong in Dauntless from the get-go and only joined to make his family proud, when he clearly belonged in somewhere like Amity. His entire initiation experience is agonizing and terrifying to him, and he grows more and more distant until eventually, when it's clear that his only choices are factionlessness and death, he joins with Peter and Drew in their attempt to murder Tris, regretting it immediately afterwards. It gets worse when Tris coldly rejects his pleas for redemption, despite being fully aware of his mental state and the intentions behind his actions, which leads to his suicide. A major What the Hell, Hero? moment for many readers.
Tris, by the end of the first book. During initiation, she is bullied, verbally harassed, and sexually assaulted for being a "Stiff", becomes a victim of attempted murder, feels guilty when an ex-friend commits suicide, watches her entire world and society crumble around her, is forced to shoot one of her best friends (who was mind-controlled), loses both of her parents, and is nearly shot and killed by the boy she loves (who was also mind-controlled). Her mental state continues to spiral downwards in Insurgent, to the point where she is nearly Driven to Suicide in the Candor Headquarters, and only holds back because she thought it would be ungrateful towards her parents, who sacrificed their lives for her. She also turns herself in to Jeanine without any escape plan, and the text makes it abundantly clear that she actively wants to die at this point.
Author's Saving Throw: In The Divergent Series: Insurgent, Tris had her hair cut into a pixie cut, much shorter than it was in the booksnote The reasoning for this is Shailene Woodley having cut her hair completely short for The Fault in Our Stars and couldn't grow it out in time for The Divergent Series: Insurgent, which received complaints. This led to The Divergent Series: Allegiant having her hair now at chin-length, which is how she cut it in the books.
The announcement that Uriah will be cut from Divergent and saved for the sequel, The Divergent Series: Insurgent. Some believe that Uriah's purpose in the first book wasn't that important, while others that love the character still call heresy on it.
Shailene Woodley as Tris. A lot of book fans felt she was all wrong for the role, and many reviewers described her performance as "disaffected" - plenty comparing her unfavourably to Kristen Stewart in the Twilight films. Others however, particularly around the time The Divergent Series: Insurgent was released, praised her as one of the best parts of the franchise - and she enjoyed the same level of hype that Jennifer Lawrence got from The Hunger Games.
In Divergent, there's Tris getting the flag instead of Christina like in the books. Those who argue against the change say that Christina needed her Moment of Awesome after being abused by Eric. Others say that it has much more meaning if Tris is the one who gets it, visually showing that she has finally earned her spot (as Christina had never been in danger of being cut).
The Divergent Series: Insurgent — for those who liked the first film, is it a step backwards (especially for lots of changes from the book)? For some who disliked the first one, they felt it was an improvement (with more material for Shailene Woodley to work with, increased screen time for Kate Winslet, better pacing). And some felt it was on par with the first one, being as good or bad as they felt it to be.
The Divergent Series: Allegiant was panned by most critics, but some felt it was an improvement over the first two films. It doesn't help that the book it's adapting is the most divisive of the three, and some of the many changes made are still up in the air as to whether or not they are improvements.
Critical Backlash: The films are usually on many critics' 'Worst of X Year' lists, and "still better than Divergent" is often used to describe other movies based off YA books. Some understandably don't find the movies to be that bad.
This especially appears to be the reaction to The Divergent Series: Allegiant, which was near-universally panned by critics but has a So Okay, It's Average rating of 6.0 on IMDB.
Critical Dissonance: The film received mixed reviews from critics, but was generally well-received by audiences and fans of the book, and had a massive $55 million opening.
Ensemble Dark Horse: Octavia Spencer's portrayal of Johanna was quite well-received. Viewers who loved her work in The Help and felt she's been criminally misused since her Oscar win (due to Hollywood not having many roles for black actresses outside of movies about race) are glad that she's at least getting to showcase her talents in a big budget franchise.
Foe Yay: There's plenty of sexual tension between Peter and Tris, which is understandable since their actors are good friends in real life and had played lovers in The Spectacular Now.
Just Here for Godzilla: A large amount of the first film's press came from the fact that Kate Winslet of all people was the villain. Half the interviews asked her about it.
Memetic Mutation: The fact that Ansel Elgort and Shailene Woodley who play siblings Caleb and Tris Prior, would later star as lovers in The Fault in Our Stars prompted plenty of memes about Tris or Caleb about to have a romantic moment, only to realise they're in the wrong movie. To a lesser extent, there will also be references to The Spectacular Now where Shailene Woodley played the girlfriend of Miles Teller.
Some reviewers have pointed out that while Dauntless's habit of doing Le Parkour to board the overhead railway is clearly meant to embody how free spirited and brave they are, but the movie makes them look more like the cast of Fame or West Side Story than police/army recruits. Mark Kermode in his BBC review also thought their jumpsuits looked "a bit Blake's 7", which may become Narm Charm for some viewers.
Tris's pained squealing in The Divergent Series: Insurgent during the trial in Candor.
During Max's trial in The Divergent Series: Allegiant a random man steps out of line and shouts "we ought to slaughter you!" in the most hammy way imaginable.
Snark Bait: It can be very amusing to watch how the series tries to speculate on teenage problems like finding its way in life, feelings for a much more beautiful and popular Love Interest or the fear of being mediocre. And in the end result we also have Narm Charm traitor and unintentional Mind Screw in the sequels because of a very strange story.
If The Descendants and The Spectacular Now didn't have people convinced, Shailene Woodley's reaction to her mother's death in the first film won a good few critics over. Many were also surprised at how well she held her own against established talent like Kate Winslet, Ashley Judd, Naomi Watts and Octavia Spencer.
Zoe Kravitz was mainly known for being Lenny Kravitz's daughter, so she got a new set of fans for her part as Christina. Fans have likewise lamented her lack of screentime in subsequent films.
Uriah gets cut from the first movie, is a real One-Scene Wonder in the second and has no lines at all in the third.
Christina is also featured less and less as the series goes on. In The Divergent Series: Allegiant she practically disappears for the entire second act.
Unfortunate Implications: Discussed here about a change in Divergent from the book to the film - in the book Tris's fear of intimacy is her third fear, which gets changed to a hallucination of Four attempting to rape her in the film. The post points out that the change (and by extension having Tris conquer the fear with a Groin Attack) opens up a can of worms:
"...Aren't we just putting the impetus on preventing sexual assault back on the women? So if someone not as strong as Tris is unable to fight off her attacker, is she not responding "appropriately"? Then, aren't we just saying she didn't do everything she could, and thus, it's partly her fault?"