 There is a sequence where Charles Aznavour (qv) (as the hunchback)  escapes the police by crawling on the mansion ceiling and jumping  down through a window made of water. This is a visual reference to  surrealist Jean Cocteau (qv)s _Sang dun poète, Le (1930)_ (qv)  where the character jumps into a mirror made of water after crawling  over a hallway of doors. (The effect was achieved by constructing  the "wall" and "ceiling" on the studio floor and shooting the scene  from above.) Even the sound effect at that moment 