Fun With Staircases (poll list)15 of 16
The scenes where Mary Poppins and the Banks children slide down the staircase bannister and up it too in Mary Poppins (1964).
Yeah, the first indication that the Banks children have that there is something unusual about their new nanny is where they see here sit on the staircase bannister and magically slide up it. After all, only the audience saw her floating down out of the sky to the Banks' doorstep.