Lena supposedly snorts cocaine at the party, but the cocaine is still on the small spoon she uses after she has "snorted" it.
When Davies and Gee Wu are drinking tea together, Davies lowers the cup from his mouth twice.
Obvious use of stock footage throughout, taken from another film, to simulate the actions of characters in this film.
Scenes set in the early part of the twentieth century feature cars and medical equipment from a later date, as well as conspicuously 1930s hairstyles for the actresses.
When Davies is persuading his wife that his plan will work, the boom shadow falls the wall behind them. Also, the mike dips briefly into the shot and, and the camera moves forward, the shadow of the accordion-style apparatus used to hoist the mike is also visible, almost distractingly so, on the wall, right behind the wife.
Throughout Davies' confrontation with the man at his wrecked home, the boom mic is unmistakable following them as they move about through the room. The shadow is constantly visible on the wall.
In the close-up of Davies after he forces the man out of his house, the edge of the mike dips into the shot and hovers above his head.