I will tell you exactly what this Salvador Dali collaborative effort reminded me of.  It reminded me of the tape in THE RING that will kill you in seven days after you watch it.  This is a surrealist hodgepodge of visuals that only produces a "What the F**K?" emotion.  There is that slit eyeball scene (which the film is most famous for), a man pulling 2 pianos into the living room with pilgrims in tow, breasts morphing from covered, to bare, to under overalls, to butt cheeks etc..  It is so weird.  I think this short film is famous because it reminds us that there were werid, abstract filmmakers even back in the 20s.  I still don't really enjoy it though.