Diary of a Wimpy Kid: No Brainer – WISE Score & Parent Review | Screenwise

Diary of a Wimpy Kid: No Brainer

Name: Screenwise
Author: Screenwise

movie2021

58%

WISE Score

Avg. Tomatometer

Middle-school survival comedy that's heavy on fart jokes and light on everything else—safe, but the audience scores tell the real story.

75%

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Diary of a Wimpy Kid: No Brainer

movie

PG, 2021

58%

WISE Score

Avg. Tomatometer

Middle-school survival comedy that's heavy on fart jokes and light on everything else—safe, but the audience scores tell the real story.

75%

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75%

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Screenwise Verdict

Look, this is Wimpy Kid doing what Wimpy Kid does—toilet jokes, middle-school scheming, and a protagonist who's more interested in fame than friendship. It's safe and predictable, which is fine for a lazy Saturday.

But here's the thing: even the fans aren't loving this one. A 38% audience score on Rotten Tomatoes and a dismal 2.1/5 on Letterboxd tell you that this 2021 adaptation didn't land. It's not offensive or harmful, just... forgettable. The humor is tired, the story beats are familiar, and there's nothing here that enriches or challenges kids in any meaningful way.

If your 8-year-old is a die-hard Wimpy Kid fan, sure, throw it on. But don't expect them to ask for a rewatch, and don't be surprised if they wander off halfway through to play Roblox instead.

Age Fit

Best for 8-10 year olds who are in or approaching middle school and can relate to the social dynamics. Younger kids might enjoy the slapstick but won't connect with the tween angst; older kids will likely find it babyish and boring.

WISE Breakdown

Wholesome

Middle-school humor with relatable social dynamics but leans heavily on toilet jokes, booger gags, and mild name-calling. The protagonist's schemes and self-centered thinking are age-appropriate for the tween experience, though not exactly modeling exemplary behavior. Tone is light and consequence-free, which works for the age group but doesn't push much emotional growth.

Imaginative

The premise of surviving middle school with big dreams is relatable but not particularly original—this is a well-worn franchise at this point. The 2021 adaptation doesn't bring fresh creative energy; it's a straightforward retelling with animated violence and slapstick. Doesn't invite much creative thinking or exploration beyond passive viewing.

Safe

PG-rated with mild themes, animated violence, and bathroom humor that's predictable for the franchise. No surprise content—parents know exactly what they're getting with Wimpy Kid. The crude jokes (farts, pee mishaps, boogers) are the main concern, but they're age-appropriate for the 8-10 target audience and nothing traumatic or triggering.

Enriching

Entertainment value is there for the target demographic, but cognitive or ethical growth is minimal. Greg's self-centered scheming doesn't offer much in the way of meaningful lessons, and the humor is mostly surface-level. It's a time-filler that kids will watch and forget—not building skills, empathy, or insight in any significant way.

Parent Info

✓

Why It Might Be Great

Relatable middle-school anxieties and social dynamics that 8-10 year olds will recognize
Predictably safe—no surprise content, just the toilet humor you'd expect from the franchise
Short enough that it won't overstay its welcome on a rainy afternoon
Greg's scheming and imagination (even if self-centered) can spark conversations about social situations

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What to Watch For

Lots of toilet humor—boogers, farts, a bathroom scene where Greg pees on his brother—decide if that's your jam
Mild name-calling and animated slapstick violence typical of tween comedies
Greg's self-centered behavior and schemes don't model great friendship or cooperation
The 38% audience score and 2.1/5 Letterboxd rating suggest even Wimpy Kid fans found this one underwhelming

Conversation Starters

"What would you do differently if you were trying to become popular at school?"
"Do you think Greg's plans ever actually work, or does he just make things worse for himself?"
"Have you ever felt like Greg—like you had big dreams but middle school was just getting in the way?"

Deep Dive

The Critic-Audience Gap

The most telling thing about this 2021 release isn't the 75% critic score on Rotten Tomatoes—it’s the 38% audience score and the 2.1 on Letterboxd. Usually, critics are the ones being "snobs" about kids' movies while the fans eat it up. Here, the roles are reversed. Critics likely appreciated the short runtime and the way the animation mimics Jeff Kinney’s iconic stick-figure style. But for the actual fans—the kids who have lived and breathed these books for years—this version felt a bit hollow.

If your kid is a purist, they might complain that it moves too fast or misses the specific "voice" that makes the books work. It’s a very literal adaptation that hits the plot points but loses some of the charm in the transition to 3D-ish animation. It’s not a disaster, but it’s definitely the "diet" version of the source material.

The Greg Heffley Paradox

We need to talk about Greg. In a world of "be kind" and "growth mindset" children's media, Greg Heffley is a total anomaly. He is selfish, he’s obsessed with his own social status, and he treats his best friend, Rowley, like a disposable tool for his own fame.

For some parents, this is a dealbreaker. But if you look at our Diary of a Wimpy Kid: The 23-Book Box Set Reality Check, you’ll see that this is exactly why kids like it. Greg isn’t a role model; he’s a release valve. He represents all the petty, anxious, and self-centered thoughts that middle-schoolers actually have but aren't allowed to say out loud. Watching Greg fail—and he almost always fails—is part of the catharsis. If you go into this expecting a moral lesson, you’ll be disappointed. If you go into it as a "what not to do" comedy, it clicks much better.

Where It Fits on Your Watchlist

This is a "background noise" movie. At a lean runtime, it doesn't demand much from the viewer. It’s the kind of thing you put on when everyone is tired and you just need 60-odd minutes of low-stakes slapstick.

If you’re looking for something with a bit more heart or a higher production value for a family movie night, check out our Disney+ Holiday Picks for Early Elementary. But if your 8-year-old has already burned through the books and just wants to see the "Cheese Touch" happen on screen, this is a safe, albeit mid, choice. Just don't be surprised if they spend more time looking at their tablet than the TV.

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