Watch the scene where Uma Thurman (Mrs. Peel) is introduced. She is upstairs in her house when the doorbell rings. She goes downstairs, clearly wearing a pair of low heels. She goes to the door to accept a package. As she leaves the door,you can get a quick glimpse of her bare feet on the left bottom of the screen. As if this isn't enough, they have placed the sounds of her shoes walking on the floor!