Before he is slapped in the Prologue segment, Billy (Joe Hill) already has red slap marks painted on his face.
When Hank enters the graveyard to look for Aunt Bedelia, the hanging lantern (which Bedelia had previously hit her hat on) has now gone.
The direction the 'Popov' vodka bottle faces changes between shots in the second segment of the film, "The Lonesome Death of Jordy Verrill".
Sand on Harry's faces disappears and reappears between shots as Richard
buries him.
As Richard hurriedly drives his Jeep away from Harry's buried head, the back window is swung up. With the tide quickly coming in, he must hurry. As Richard approaches his house, the window is down. On this model of Jeep, the spare tire must be swung away from the window in order to close it.
In the segment "Father's Day" - which purportedly takes place on Father's Day (which is in June) - it is already completely dark outside by 7pm. By this time in June it wouldn't be completely dark outside until much later in the evening.
The Lonesome Death of Jordy Verrill - The impact zone around the meteorite would have been oblong since the trajectory of the meteor was at an angle. The perfectly round shape featured implies an impact perpendicular to the earth.
In "They're Creeping Up On You," Upson Pratt smashes a cockroach with the butt of his gloved fist (in a close-up), and in the next shot his white glove is clean as he looks at it. If he is imagining the roaches, as the movie implies, the glove would be clean.
During the segment "Something To Tide You Over," the hole that Wentworth is buried in shakes unrealistically when he yells for Richard to stop.
In the segment "The Crate", when Henry "shoots" Billie, the hole in her forehead appears one frame AFTER the blood spray comes from the back of her head.
In "Something to Tide You Over", when Richard goes to the beach after the couple has drowned, he picks up a bucket. He takes it out of the wet sand, yet he empties obvious dry sand from it.
Letters appear in the Creepshow comic book, despite the fact that it is mentioned that this is the first issue.
During The Crate sequence the actress who plays Wilma can clearly be seen multiple times breaking character and cracking a smile.
During "The Crate", when Wilma is making a fool of herself at the luncheon, she says the line "Whoever that etiquette crotch is." Not only does the line barely match the movement of her lips, the line is said in a voice that doesn't quite match Adrienne Barbeau's. Internet research reveals the original line was "Whoever that etiquette c**t is," but was changed in post-production at the request of Warner Bros.
In "The Crate" when "Fluffy" jumps on Charlie you can see a few wires in the final frames of the shot.
In the first segment, when the zombie rises from the grave you can that he is simply wearing mask over his real face, and for the remainder of the segment it is very obvious.