How is surrealism different from other types of art?

Surrealism was possibly the defining art movement between the two world wars. It was started by Andre Breton in c1920 and was borne out of Dadaism. Dada was a form of anti-art that deliberately defied reason. Dadaism was also aimed at negation, whereas the surrealist movement aimed to be a more positive expressive art form. Initially it consisted of a series of journals and poetry. Both Surrealism and Dadaism were different to other art movements as they were making a mockery type of buffoonery to every other type of art form, Surrealism is bizarre state of art as it shows un-imaginable artworks to be conducted, things from dreams, nightmares and images from the subconscious.