Which art styles of the last fifty years owe their greatest debt to surrealism? How so?

Their emphasis on the power of personal imagination puts them in the tradition of Romanticism, but unlike their forebears, they believed that revelations could be found on the street and in everyday life. The Surrealist impulse to tap the unconscious mind, and their interests in myth and primitivism, went on to shape many later movements, and the style remains influential to this today.