Revealing: Zachariah Skull's bald head has a problem. The latex skull-cap used to cover the actor's hair keeps bubbling and wrinkling as he speaks.

Revealing: Just before she dances away, the life-size ballerina "puppet" fails to hold her fixed stare and blinks.

Revealing: Artemus is sampling beef stroganoff from a pot on the stove. He then carries the kettle by its swinging handle across the room, tilting it just enough to reveal to the camera that it's really empty.

Revealing: Kitten bends apart the cell bars, allowing West and Gordon to escape. But when they brush against it on the way out, one of the "iron" bars gives, flexing like the rubber that it probably is.

Visible crew/equipment: Behind West, when he's suspended over the electrical field, you can see the shadow of the boom mike and rigging pole moving on the wall.

Visible crew/equipment: When the Eccentrics outline their nefarious plan to assassinate Juarez, the boom mike shadow is moving on the door behind West and Gordon.

Revealing: Tony throws two knives at West - but on the wall where the knives hit, the rectangular openings from which the blades actually emerge are delineated beforehand. Happens again a few scenes later, where slots cut in the door are already there before the knives are thrown. [Spoiler: It's inconsequential to the "revealing" error, but if you play the scene in slow motion, you can see that both times, the knives pop through from the back of the "wall." This is also how the carnival trick is performed.]

Visible crew/equipment: West walks through the gate into the amusement park and twice passes very visible truck tire treadmarks in the dirt street.

Continuity: In the reverse angle shot of West's table, the plates, candles and red table cloth are all there - but the huge dish of butter has disappeared.

Continuity: Because the second one is a painted backdrop, the building across the street from the sheriff's office in the exterior shots looks nothing like the one we can see from inside the office in the next scene.

Revealing: When the marshal opens the train's rear door and comes in to arrest Lana, you can see wrinkles in the "sky" outside. It's really a painted cloth backdrop.

Continuity: Balya, the Turkish representative, is killed by a knife protruding through the back of his chair. But when he falls to the floor, leaving the knife behind, there's no blood on the blade.

Continuity: West and Gordon are ordered to sit on the floor to talk to the diminutive Dr. Loveless at eye level. In all the two-shots, their shoulders are touching. In all the wider angles, they're sitting a foot apart.

Continuity: Dr. Loveless' henchmen remove Artemus' leg chain. But a few scenes later, he's shown asleep in a chair, and the chain is back around his ankle.

Continuity: West stabs the giant cat in the left front paw. But when the cat is shown licking its wound, the injury is on its right front foot instead.

Revealing: The "corpse" Miklos wheels into Dr. Faustina's laboratory is pretty healthy for a dead guy: you can see his chest moving up and down as he breathes.

Continuity: While Artemus talks to Lily at her dining table, he clasps his hands behind his back and is standing up straight. When the shot cuts, he's suddenly leaning forward with his left arm extended to the table.

Continuity: The large black straps hanging off the sides of Dr. Faustina's medical table disappear when West and Gordon burst into the lab.

Visible crew/equipment: At the end of the sword fight, the moving boom shadow is visible on the balustrade at the right of the screen.

Revealing: During the sword fight on the stairs, Artemus' stunt double's face is in plain view in several shots.