Poster on wall during Focus on Film
Rebenga has thick glasses and is always holding on to them; he resembles another Cuban character named Uribe in Topaz who does the exact same thing with the same kind of glasses.
The title is mentioned.
Mentioned in documentary
Cover seen on shelf in DVD-store
During the post end credits one of the title cards mentioned that Hitchcock directed six more movies after Psycho.
DVD on the shelf (Alfred Hitchcock box-set).
correct answer in "Cinema Facts" category