Luis Buñuel Portolés was a Spanish filmmaker who worked in France, Mexico, and Spain. He has been widely considered by many film critics, historians, and directors to be one of the greatest and most influential filmmakers of all time. Buñuel’s works were known for their avant-garde surrealism which were also infused with political commentary.

Surrealism is an art and cultural movement that developed in Europe in the aftermath of World War I in which artists aimed to allow the unconscious mind to express itself, often resulting in the depiction of illogical or dreamlike scenes and ideas. Its intention was, according to leader André Breton, to "resolve the previously contradictory conditions of dream and reality into an absolute reality, a super-reality", or surreality. It produced works of painting, writing, theatre, filmmaking, photography, and other media as well.