A nameless member

Continuity mistake: When Billy smashes the Candy store window the amount of stuff behind the glass changes between shots. (01:27:50)

Sacha ★

Continuity mistake: When Billy's mom grinds the Gremlin in the food processor, the fridge to the left swaps from dirty to clean. (00:54:35)

Sacha ★

Continuity mistake: Before Mrs. Deagle is attacked a portrait appears on her table between shots. (01:08:25)

Sacha ★

Continuity mistake: When Rand is showing the old man his invention, he pulls the toothbrush up, and it is facing away from him. When the shot changes the toothbrush is now facing him. (00:02:30)

Hamster ★

Continuity mistake: When Billy accidently squirts shaving foam onto his father, by use of the bathroom buddy, the foam around Rand's mouth disappears between shots. Foam also appears on his glasses between shots then disappears too. (00:27:15)

Hamster ★

Continuity mistake: After Rand squirts the toothpaste all over his jacket, it all completely disappears after he gives the shop owner his card. (00:02:45)

Hamster ★

Continuity mistake: When Pete is laying on Billy's bed talking to Gizmo, in one shot he's laying on his stomach, then in the next shot he's laying on his side. (00:23:55)

Hamster ★

Continuity mistake: When Billy puts the santa hat on Gizmo, in the first shot the hat is folded backwards so that the bobbled end is hanging behind the hat. In the next shot it hangs over the front of the hat. (00:19:45)

Hamster ★

Trivia: When Billy's mom takes the picture of Gizmo at the beginning, Gizmo becomes frightened and runs over to Mr. Peltzer. When the scene is slowed, you can see the puppeteer's hand underneath while operating the Gizmo doll. Not a mistake as needs slo-mo, but worth a look. (00:19:10)

Factual error: For a movie supposedly set in late December in a Northern state, all of the deciduous trees still have leaves on them. The most obvious place to see this is in the opening scene, when Billy is trying to start his car in front of his house. (00:07:05)

Visible crew/equipment: As Mrs. Deagle is walking along the street, carrying the broken snowman head, as she passes one store, clearly reflected, a little ahead of her, is a man carrying the boom mike. (00:10:00)

Hamster ★