Petra Černocká, Jan Hrušínský´s head and Helena Růžičková in 1972 fantasy comedy The Girl on a Broomstick, directed by Václav Vorlíček.
Vorlíček was always a fan o these crazy special effects, which were actually pretty simple. In this case, the actor is sitting inside the casket and what seems to be an empty space under his head, is actually a mirror, reflecting a piece of setting built behind the camera.
Hand-made gimmicks like this are part of this film´s charm. Three years ago, Vorlíček made a sequel of it called Little Witch on a Broomstick, which was full of Harry Potter like CGI effects and it was just… so wrong.