Movie scene references which or how many have you noticed?

Thinking of movies what image or scene do you figure is used or referenced over and over even if not in the same manner? Some of the scenes I seen used many times in different ways are:
• The dead horse head in the bed (Godfather).
• Elliot and E.T. silhouetted by the moon flying on the bike (E.T.)
• The “shower scene” (Psycho)
• The crane pose (the Karate Kid)
• Victory run to the top of the stairs (Rocky)

What scenes have you noticed used or reference by many other movies or shows?