Continuity mistake: In the scene where Finn paints Estella's portrait Mrs. Dinsmoor puts down the same empty glass twice. (00:24:45)
Continuity mistake: At the beginning of the film when Finn meets Lustig again at night he gives him a bottle of whiskey. Lustig takes long gulps and pours loads of whiskey over his injured ankle, but the bottle stays full throughout the scene. (00:09:20)
Continuity mistake: In the scene in Mrs. Dinsmoor's bedroom the background changes: A green dress disappears from the wardrobe, and a huge mirror appears where you can see Finn's reflection. (00:43:20)
Continuity mistake: Mrs. Dinsmoor doesn't visibly age over a time span of about 15 years.
Continuity mistake: When Lustig comes to Finn's appartment he reveals his identity by replaying the scene in the water, when they first met. Right next to Finn's head you see a decorative mobile with vigorously swinging birds. In all other shots the mobile is completely motionless and in quite a distance from the spot where this conversation takes place. (01:25:00)
Continuity mistake: The piece of wallpaper Mrs. Dinsmoor pulls off the wall for Finn to draw on is perfectly rectangular, in contrast to the oddly shaped one Finn actually uses. (00:23:05)