Revealing mistake: Vera is handed a cup of coffee at the crime scene. After taking the first sip, no liquid can be seen against the area of the cup she drank from, revealing that there was nothing inside it. (02:00:40)
Revealing mistake: Vera types "Nico Lasarte - Murdered - 1989" into a web browser. When she clicks the search button and the screen changes to list the search results, Vera's position in the frame can be seen shifting on-screen, revealing that the shot of the search bar and the shot of the search results were two separate shots merged together. (00:57:20)