Continuity mistake: At the start of the film, where the Leprechaun sits on the step and recites his line, the gold coins on the step next to him change position from shot to shot. (00:00:40)
Continuity mistake: When O'Grady gets out the limousine, we see him drinking from a bottle of wine and his ring is on his pinkie finger. But in following shots as he's on the porch, the ring has jumped onto his index finger. (00:01:40)
Continuity mistake: When O'Grady goes over to the box, he rips off the whole strip of cello tape from the top of it and throws it into the bush. In the next shot cello tape is still hanging from the cardboard box's side. (00:03:05)
Continuity mistake: O'Grady opens the cardboard box and pulls out the soft paper from inside, and throws it to the side, into the bush. In the next shot the paper is back on the table, behind the box. (00:03:05)
Continuity mistake: When O'Grady pulls the urn out of the cardboard box, the box is sitting on the table. In the next shot it is off, and sitting on the bush next to the table. (00:03:15)
Continuity mistake: When O'Grady pulls the urn out of the cardboard box, he smashes the green urn on the table. Between shots the fragments of smashed ceramics change shape, size and position. (00:03:20)
Revealing mistake: After the Leprechaun kills Mrs. O'Grady, she is leaned up against a table. After Mr. O'Grady shoots the Leprechaun, he walks over, past his dead wife, who clearly blinks. (00:07:40)
Continuity mistake: When O'Grady is nailing the lid to the crate on, to keep the Leprechaun locked up, the jar of nails, the nails scattered on the crate lid, and the hammer change position between shots. (00:08:20)
Factual error: The movie takes place in North Dakota, but there are no tarantulas in North Dakota. (00:12:05)
Continuity mistake: In the basement, after the white sheet falls on Tori, the top of her black shirt alternates from clean, to dirty with white plaster dust smeared on it. (00:18:40)
Continuity mistake: When Ozzy spills the paint he is completely covered in it yet the floor below him is completely free of any paint. (00:19:05)
Continuity mistake: When Ozzy and Alex are painting, before Ozzy goes inside to clean up, the whole wall is painted blue. Later on in the movie when Nathan runs outside, we see the same wall only half painted. (00:19:10 - 00:49:30)
Continuity mistake: When the Leprechaun gets out of the crate, he walks toward Ozzy, who backs away. As he crawls backwards the towel on his shoulder falls off. In following shots it's back on. (00:21:45)
Continuity mistake: After Ozzy tells the others about the Leprechaun, they all go inside to look. Alex hasn't got his red cap on and he isn't holding it either, yet as they enter the basement, he has it on.. (00:23:20)
Continuity mistake: As the guys are searching for the Leprechaun in the basement, Alex removes his red cap twice. (00:24:20)
Visible crew/equipment: When the Leprechaun is rubbing Tori's leg, you can see the reflection of a large white reflector and a crew-members head, reflected in the side of the truck. (00:30:05)
Continuity mistake: Early on, the leprechaun badly scratches Tory on the leg, yet later in the film there is no sign of damage. (00:30:15)
Audio problem: When Tori says "something was rubbing my leg" her mouth doesn't move in the shot when she says "my leg." (00:30:30)
Continuity mistake: During the scene where the collectables man is studying the Leprechauns gold coin, the doll on top of the safe is sometimes laying flat on it's back, sometimes sitting upright against the wall. (00:34:15)
Continuity mistake: After Ozzie and Alex leave the gold coin to be examined, when the shop owner looks through the book the back clasp of his suspenders is unclasped, then is clasped when he's at the stairs, only to be unclasped after he moves the tricycle, then clasped yet again. (00:35:20)
