In Raiders of the Lost Ark (1981), Indy pushes a stone block, the shadow of which can be seen bouncing off the ground off camera.
In From Dusk till Dawn (1996), Tarantino is eating a burger when the camera is facing him and is drinking beer when the camera angle changes.
Misery (1990), Buster places a post-it note with Sheldon's name on the board. Position of the note changes 4 times in the successive shots.