 CONT: When Joel and Clementine are eating at the Chinese restaurant,  Kangs, the beer level in Clementines bottle change between shots.  Clementine pours some beer into a glass and the bottle is obviously  about 3/4 empty. When you see her set the bottle down in a shot from  behind, it is almost full. Immediately in the next shot from the  front, the bottle is almost empty again.