When Joe is talking to Daisy in the kitchen, the position of Joe's arms varies between shots.
In shots looking downstairs to the handcuffed Daisy, The Lodger's position varies between left shoulder forward to the camera and right shoulder forward.
When The Lodger (Ivor Novello) and Daisy (June Tripp) are playing chess, but the board is set up inappropriately. The square in the right corner should always be white. In this case, the bottom-right square is dark (black). This is the most obvious when The Lodger (Ivor Novello) is poking the coals in the fireplace.