Go to the scene where the crowd is going to Golgaltha, along with the soldiers and Jesus. After they have taken off Jesus' clothes, and have tied him to the cross, they show a close-up of one of Jesus' hands, with a nail on-top, held by a soldier. Look closely - it's his left hand. Then the camera zooms out, and you can see the whole body of Jesus, and the soldier drives the nail into his right hand. Look at his left, and no nail is in it.