The surrealist masterpiece “L'Age D'or” showcases the incomparably obsessive cinematic imagination of Luis Buñuel at its beginning and the celebrated surrealism of Salvador Dalí at its peak. In 1930, Buñuel and Dalí created an hour long avant-garde tour de force that's both an aesthetic avalanche of boldness and a withering attack on a society that elevates pious morality over sexual freedom.