Jarvis and Carter use a Figure-8 device on a rope to rappel down into the sewer. However, the Figure-8 is threaded the wrong way on the rope and would not be able to arrest their descent.
When Agents Roger Dooley and Ray Krzeminski are going through the room where the man with no voice box had been staying they find three passports with fake names based on film directors. The British one is Alfred Lean (Alfred Hitchcock/David Lean). The American one is Orson Hawks (Orson Welles/Howard Hawks). The Italian one is Frederico Rossellini (Frederico Fellini/Roberto Rossellini)
The series is set in 1946. Although Frederico Fellini was a film scriptwriter at that time, he did not direct any films until 1950.
The series is set in 1946. Although Frederico Fellini was a film scriptwriter at that time, he did not direct any films until 1950.
During the ending scene at the Automat at around 1:58 you can see the masking tape marking the position of the bar stool.