Audio problem: When the boys are beating up Mikey during the flag football type game, he knees one of the kids in the crotch. An African American boy then says "man you should start wearing a cup." The boy's mouth doesn't match.
Visible crew/equipment: The boom mic is visible when the first golfer hits his ball and the camera pans up. It's a long pole that is very out of place on the right side of the screen. You can even see it wobble.
Other mistake: The newspaper at the gas station is dated 1962. The movie is set in 1969. The problem with this is that in the beginning, the narrator mentions that the Fisher incident happened 10 years before they moved to Novato. It has only been 7.
Visible crew/equipment: At the golf course as the boys are describing what they are seeing, the camera shadow is visible on Bobby's left shoulder the entire shot. When we see both boys and Shane in the same scene, the shadow is now mostly on the dog.
Audio problem: After Bobby says the "F" word, he says "someone get me soap, I'll do it myself." His mouth doesn't match.
Visible crew/equipment: At the beginning when the kids are helping Fisher put his cape on there is a shot looking at them. At the bottom of the frame is the shadow of the camera.
Answer: Deliberate production choice, and to show him from the younger child's point of view - also remember The King, when in his drunken state, is a child abuser, so the younger boy will see him as a large and terrifying presence - that is, so big he won't fit in the frame of the shot.
Neil Jones