Continuity mistake: When Hugo is walking with his uncle, carrying the automaton, the way he holds it differs between the first and second shot.
Continuity mistake: The position of the automaton's arm when writing for the first time is inconsistent between shots.
Continuity mistake: When Hugo is outside Isabelle's place for the first time, he is standing by the middle of a brick column. When the angle changes he is by its side.
Continuity mistake: When the inspector crashes against the band of musicians, the mess on the floor differs between the first shot and the one following.
Continuity mistake: After Isabelle recites the poem, the Inspector's head position doesn't match between the front and back angles.
Continuity mistake: When the kids are reading in the library and the author shows up, the kids flip all the pages and then the book appears pointing upwards or downwards.
Continuity mistake: When the inspector first approaches the flower girl, a luggage porter passes behind him. When the angle changes, the man is meters behind, repeating his previous movements.
Revealing mistake: At the end of the first chase scene with Hugo, the Inspector and the doberman, Hugo escapes by climbing up and across a train trestle that goes over the tracks. In the overhead shot of Hugo going over the tracks, as he is walking, you can see a safety harness that is coming from his waist and to his left, attaching to a horizontal pole.
Continuity mistake: After Hugo and Isabelle see the picture of the moon printed on the book, their hands alternate between being on the book, to away from the book, between angles.
Continuity mistake: When Méliès shows up after the projection, the film suddenly disappears from the reel.
Revealing mistake: When the automaton starts drawing, a thick black piece suddenly appears behind the tip of the pen, most likely some sort of mechanism, or a piece of lead to allow for the drawing to be made.
Continuity mistake: After Frick gives the Dachshund, the Inspector looks at his watch and puts it in his pocket. When the angle changes, he is looking at his watch again and repeating all previous movements.
Continuity mistake: After Hugo's been saved by the inspector, he holds onto the automaton while being threatened by the cop. Méliès arrives and shouts, and for a brief moment the way Hugo holds the automaton completely changes.
Continuity mistake: The first time the doberman dog chases Hugo, it enters a hallway and skids. The passers-by behind differ between shots.
Continuity mistake: After Tabard shows the movie, he raises up twice.
Continuity mistake: When Hugo gives Mrs. Méliès the drawing, her hands change positions between the wide and the close-up angles.
Continuity mistake: Position and number of drawings on the bed in Mr Méliès' house differs between shots.
Continuity mistake: When Frick brings the Dachsund, the bag on the chair changes positions between shots.
Continuity mistake: After the automaton stops, Hugo slouches on a sofa. His position differs completely between one frame and another.
Continuity mistake: In the scene where the automaton stops drawing in Hugo's lair, in a close up there is a mysterious red spot on our right of Hugo's chin, but in the rest of the movie the spot is gone.
