Continuity mistake: When Steven and Connie arrive in the armoury and the hand-shaped pedestal rises out of the floor, the pedestal is shaped like a right hand when first seen, but like a left hand for the rest of its screentime. (00:06:00)
Continuity mistake: When Connie starts reading The Unfamiliar Familiar to Steven, she starts at the very beginning of the book. A couple cuts later, as she continues to read the same passage, the book is now open to the middle.