I do not pay too much attention to movie posters, so it comes as no surprise that I have never noticed these clichés before. I guess that the movie advertising business is similar to other design-related fields in that they know what works, and/or are fresh out of original ideas. Between the legs: Black and white with colored flames:  Lying in bed:  Big heads in the sky over tiny people on the beach:  Back to back: Large text over faces: Blue nature-themed: One big eye:  From the back (often with weapons): The red dress: Yellow indie film poster: Reflection in sunglasses: On a bench:   Go visit Le Sibère Carnet de Christophe Courtois (note: site in French) for more!...