Errors made by characters (possibly deliberate errors by the filmmakers): The swastika that Kindler is drawing on the notepad is running in the wrong direction.
Continuity: Mr. Wilson and Mr. Potter each move the same checker piece, as if the checker piece belonged to both of them (right before they open the contents of the suitcase).
Continuity: When Wilson runs the Concentration Camp footage for Mary Longstreet we see several shots of her face with the flickering light from the screen reflected onto her face. When the film runs out of the projector the light on her face continues to flicker as if film is still being projected instead of being a bright white light.
Audio/visual unsynchronized: Near the start of the movie when Meineke gets off the ship and is going through passport control, we hear him say to the officer 'I'm here for my health' but his lips don't move.