Revealing mistake: The 'bear trap' clearly has no spikes in it, so how could it have wounded Nathan. This is ever so clear when Tori prises the bear trap open to get his leg out, and it snaps back. (00:52:00)
Continuity mistake: After Nathan pours the gasoline and throws the match in the well, we see a canister and shotgun sitting by well. But when the well explodes, they've disappeared. (01:23:50)
Continuity mistake: During a fight scene with the Leprechaun you can see a very noticeable difference in height between Warwick Davis (Leprechaun), and his stunt double. (00:52:20)
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)
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 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: When the guys walk into the kitchen to find it very messy, with rubbish all over the floor, the wall with the phone on it has nothing against it, but in the next shot, a red broom is leaning against the wall. (00:46:05 - 00:47:10)
Revealing mistake: Near the end of the film, when the people are in the house fighting the Leprechaun, one of the characters is using a shotgun. The Leprechaun rides up and down a hallway on a skateboard and the character with the shotgun shoots at him, missing not only the Leprechaun, but everything else as well. Unless he was using a round full of confetti that I've never heard of, he should be shooting the wall and everything else in sight, yet nothing at all is hit. (01:06:50)
Continuity mistake: Officer Tripet gets tired of running and he slumps down against a tree. His places his left arm up on the trunk and it slides down so that now his hand is down atop his knee. The shot changes to his front and now the hand and arm are back up on the tree trunk above his shoulder.
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)
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: As the guys are searching for the Leprechaun in the basement, Alex removes his red cap twice. (00:24:20)
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 Alex gets out the van to go fix the distributor cap, how far wound up the window is differs from shot to shot. (00:54:35)
Visible crew/equipment: When the Leprechaun is riding the cart with the pitchfork on it, as the pitchfork rams into the side of the van, on the left you can see the clear shadow of a camera on a crane and crew. (00:56:20)
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: 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: 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 Nathan is putting meatloaf on his plate for Tori, the amount of meatloaf on the plate suddenly increases between shots. (00:43:20)
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)