In the famous "Well Scene" Ivan's mother says "If A well is too deep you can see a star in it even in the day time". While speaking she is standing on the left hand side of Ivan but when their reflection is shown in water she is standing on the right hand side. Lateral Inversion has not been depicted correctly. Please have a look.
When Kholin and Galtsev take Ivan across the river in the boat, a tree into the water falls near them. It is supposed to be because of the military action taking place, but it can be seen that the base of the tree has been sawn across in a straight line.