Victor E. Kerschners reflection is clearly visible in the window in the scene were Stefan is recording his journal.
Musente states that he has read in a book by Mark Twain that Dolmino Fusilini is several hundred years on. Later on in the film Moretti claims him to be only 35.
When Maximilian is photographing the suspect with an Axe, he is covering the lens with one of his fingers.