Catwoman: Hunted: After La Dama summons a couple of demons, Batwoman gags her with a sticky bomb and "interprets" her muffled outcries as La Dama telling them that their service is complete and they should go home. They're stupid enough (and/or lazy enough) to do just that. Batwoman even lampshades this for good measure before knocking La Dama out cold with a punch.
Megamind: After receiving Metro Man's powers by Megamind, Hal Stewart becomes a muscular stud. Nevertheless, he is still a complete idiot who believes Space Step-Mom was real and the Queen of Englandisn'treal.
Bedazzled (2000) capitalizes the undermentioned basketball player stereotype when the main hero gets turned into one. He can barely put two words together and those tend to revolve around "pushing yourself to 100%...for victory".
Mongo in Blazing Saddles, though he subverts it with the thoughtful line, "Mongo only pawn in game of life."
Circus strongman One in The City of Lost Children — Hulk Speak is his first language, and it's strongly suggested that he's developmentally challenged.
Loz in Final Fantasy VII: Advent Children embodies Sephiroth's strength. He's also dumber than a box of rocks. That an aspect of freaking Sephiroth is caught bawling for his mommy like an idiot child is a pretty extreme example of this trope.
In Free Guy, DUDE is uploaded into Free City as Antwan's last-ditch gambit to stop Guy from exposing a theft of his. He has a bodybuilder's physique and can toss Guy around like a ragdoll, but his AI is only half-finished and his placeholder-riven mud-pie-sentence speak is like that of an AI-powered story generator, like Chapter 34 of Atlanta Nights.
DUDE: There are three things I love in life: Kicking ass!... TBD!... Third thing here!
Jason Nesmith makes this (wrong) similar assumption about the bad guy in Galaxy Quest.
Jason:(not realizing the viewscreen is still on) I've dealt with his kind before, he's as stupid as he is ugly. (Jason gives his crew instructions as they try to get Jason's attention) Jason: Okay Gwen, put me back on with him. Gwen: That's what I've been trying to tell you, Jason. You ARE back with him. Sarris: Perhaps I am not as stupid as I am ugly, commander.
James Ganddolfini is 'Bear' in Get Shorty, a former stunt man who works as muscle but who is revealed to be fairly clever later on.
The Golem in the silent movie The Golem is incredibly strong, but also painfully dim.
Michael "Lurch" Armstrong in Hot Fuzz. Body of a gorilla, mind of a child, Lurch is also a subversion because while he's dumb, that doesn't mean he's innocent; When Nicholas asks him if he really wants to be part of the evil Sandford conspiracy, he replies with his typical "Yarp." "Suit yourself," says Nicholas, and the fight resumes. His dim mind is due to his dad being his grandad and his mom being his sister.
Lump Hudson from the second version of The Ladykillers is a mouth-breathing jock who uses Hulk Speak. One-Round from the original version isn't much better.
Charlie tries to be this in Mystery Team. He just fails at the muscle part
Fezzik from The Princess Bride is a good example of this. It ought to be noted, though, that most of this reputation is based on the word of Vizzini, who has an overdeveloped sense of his own mental superiority. In truth, Fezzik has a number of moments of profound insight, along with a gift for rhyme. Some of the time.note Being able to consistently pull off such wordplay on demand and without preparation, and without the aid of a thesaurus, requires a great deal of intelligence.
Somewhat surprisingly averted in The Rocketeer. Lothar is The Brute and definitely looks the part, but is repeatedly shown to be quite capable of operating independently and demonstrates quick thinking on several occasions. He is also introduced listening to The Magic Flute on the radio. Similarly, Eddie Valentine's goons look like stereotypical mob enforcer mooks, but manage to fast talk and Sherlock Scan Cliff's and Jenny's identities out of a diner crowd in a few minutes.
Karl in Sling Blade is a mentally handicapped man who is noted by his employers as being surprisingly strong.
Nanue/King Shark in The Suicide Squad is strong enough to rip a man in half vertically, but he isn't the team's smartest.
A few of his outburts have little to do with the situation at hand and more to brag that he's spatially aware of things like reporting he sees a bird on the communication channel.
When introduced, he's seen intently reading the classical theoretical text Varieties of Religious Experience by the philosopher William James...but he's reading it upside down, and wants to give the appearance that he's literate more than anything.
Peacemaker: He's pretending to read a book!
King Shark: So smart, me! Enjoy books so much!
Superman II: Non is the largest and most physical threat of the criminal Kryptonians, but doesn't speak and is clearly slow-witted.
Nuclear Man in Superman IV: The Quest for Peace. Lex Luthor, his creator, even admits to Superman that he's "Not one of your great thinkers!"
In Teenage Mutant Ninja Turtles II: The Secret of the Ooze, Shredder decides to make his own mutants to fight the Turtles. The result is Tokka and Rahzar, a mutant snapping turtle and wolf. But while the two are immensely strong, they both possess an infantile mentality, and simply overwhelm the Turtles through pure brute force. Prof. Perry later explains that he altered the mutagen used so that Tokka and Rahzar would come out less intelligent than they would have been otherwise.
In There's Something About Mary, Mary's mentally handicapped brother Warren can toss people around like rag dolls.
Top Secret!: "Bruno is almost blind, has to operate wholly by touch. Klaus is a moron who knows only what he reads in the New York Post."
Fred "Blob" Dukes in X-Men Origins: Wolverine, who Stryker employs to do the heavy stuff like stopping a tank from firing at them, is not the smartest of Stryker's team, even getting a tattoo of a woman he only met the night before.