I try to change my displays once or twice a year. Except 'One Million Years BC', the locandinas (because I only have these) and the 'Mole People' Lobby Card (I only have this US set).
Moreover, behind the frame of the 'Frankenstein created woman' German poster, there is another frame with an other German poster, and we can see on the ground other frames (US one sheet of Dracula has risen from the grave, which itself hides two other frames from Tarantula and the Creature Walk among Us). I store all my framed posters where I can, I don't have much space
For the 'Disembodied' poster, I admit I never saw the film, but I liked the design. Usually I always watch the films when I buy the posters (or vice versa, I watch a film then I am interested in the poster if I liked the film).