History Film / DiaryOfAWimpyKid

* TenderTomboyishnessFoulFemininity: Inverted. Holly Hills is sweet, caring, and Greg's love interest. Meanwhile, Patty Farrell is aggressive, rude, and Greg's bighest enemy.

* HelpingAnotherSaveFace: the students are aware that the Cheese has been partially eaten and begin to turn on Rowley until Greg steps in and claims he ate it, directing the embarrassment towards himself instead of his friend.

--> '''Frank (3rd movie):''' $275 worth of smoothies, [[WhatTheHellHero what were you thinking?]] ''(later)'' I'm not mad... I'm just disappointed.

* TheReveal: In the second film, there is a scene where prior to the Heffleys going to church, Manny calls out "poopy" to Greg, revealing a chocolate stain on Greg's pants as a result of a smooshed snickers bar placed under him. Greg immediately accuses Manny understandably so, but then the next shot reveals Rodrick putting the wrapper in his pocket with a smug smile to complement it.

** A cuteness variant. In the books, Manny looks like, in the author's words, a "buck-toothed alligator." In the movies, Manny looks like an adorable toddler to better play up his DeliberatelyCuteChild shtick.

* AdaptationalModesty: Very downplayed with Greg but because Creator/ZacharyGordon was an underage minor during the filming of the first three movies, a few scenes in involving Greg in his underwear are removed such as the scene where the pants he borrowed from Rodrick fell down, revealing his Wonder Woman underwear.

** Heather Hills's party is ruined unintentionally by Rodrick (and by [[BlindedByRage her own rage nonetheless]]), but she had it coming with her rude, stuck-up attitude throughout the entirety of the third film.

** Heather Hills's party is ruined unintentionally by Rodrick (and by her own rage nonetheless), but she had it coming with her rude, stuck-up attitude throughout the entirety of the third film.

** Rodrick is ecstatic to get Bill Walter into his band, especially in preparation for the talent show. As proven by Frank, Bill is nothing more than a jerkass who kicks Rodrick out of his own band — leading to Rodrick himself kicking Bill out when the latter is reinstated.
** Frank is initially shown to look up to his neighbor, Stan Warren. All of this respect is lost when Frank finds out how much of a jerkass Stan is and sees how his "big camper" reputation is completely fake.

To date, the series consists of four live action films and two animated films:

** In the book version of ''The Long Haul'', Greg worries Mr. Beardo will beat him up for scolding his children, and later assumes the Beardo family stole their stuff, but it turns out the Beardos never did anything villainous and were just having an ordinary family vacation. In the movie, Mr. Beardo is actively hunting down Greg with malicious intentions (albeit with the extra justification that Greg damaged his car and his daughter more overtly played the victim), and he steals a suitcase that falls off their car with the explicit purpose of payback from before.

** In the books, at Rodrick's WildTeenParty, Greg is locked in the basement all night until Rodrick needs help cleaning up from it. In the movie, Rodrick locks Greg in the basement, only for him to find a phone down there and call Rowley to come rescue him (to which Rodrick finds out and also locks him). When his parents call, Greg threatens to tell their parents about the secret party if Rodrick doesn't let him and Rowley out, so Rodrick lets the both out. Both Greg ''and'' Rowley attend the party. Also in the book, their parents don't find out until they go through the camera and see a picture accidentally taken of the party. In the movie their mom finds out earlier when a bathroom door they had to replace has no lock on it, which their father had questioned in the books.
** The magic act is performed by Rowley, with Greg as his last-minute assistant in the talent show, unlike the books where Greg (standing-in for Rowley) and Scotty don't even qualify.

* TheDreaded: The moldy cheese in the first film is treated as such. As Chirag Gupta warns Greg and Rowley, anyone who touches it becomes an outcast.

* AntiClimaxBoss: The fight between Greg and Rowley in the first film's climax is so pathetic, even Patty Farrell is pissed.

* ADayInTheLimelight: Like the book it's named after, the ''Rodrick Rules'' focuses more on... well, Rodrick.

* {{Deuteragonist}}: Each film in the trilogy has someone playing a major role in Greg’s life that he needs to sort out his issues with. In the first film, it’s his best friend Rowley. In the second film, it’s his brother Roderick. In the third film, it’s his father, Frank.

** The first film is a BigBadEnsemble between Rodrick Heffley, Patty Farrell, and Pete Hosey. Greg is tormented by Rodrick at home, and by Patty at school. However, Pete emerges as a [[EvilerThanThou bigger threat compared to the two]], actually attempting to physically harm Greg and Rowley and force-feeding the latter into eating the disgusting cheese.