And now further explanation of the picture in the post below with the help of good old IMDB
Plot Summary for Un chien andalou (1929)
"When writing the script, Luis Bunuel and Salvador Dali deliberately rejected anything that made rational sense, so a plot summary is something of a futile exercise. Still, here goes... Un Chien Andalou consists of seventeen minutes of bizarre and surreal images which may or may not mean anything. A woman's eye is slit open, a man pokes at a severed hand in the street with his cane, a man drags two grand pianos containing dead and rotting donkeys and live priests, a man's hand has a hole in the palm from which ants emerge."