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: 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)
Continuity mistake: When the man opens the locker, the leprechaun jumps out and kills him by pogo-sticking him to death. He never pogo's on anything but the man's chest, yet the victim has big bloody welps all over his face.