During the scene in the McKay's living room where the Father is comparing life to baseball while watching the game, the first shots of the game are the Red Sox playing at Yankee Stadium, while the later shots in the conversation show the Red Sox paying home at Fenway Park.
When Tom Guiry goes to the Marine Corps recruiting office, he speaks with a Lieutenant, played by Kevin Chapman. Except, the Lieutenant is wearing enlisted Dress Blues (red piping on only enlisted uniform), not an Officer uniform. To make matters worse, the Dress Blue uniform hanging in the background is an Officer dress blue coat (without red piping), but then has enlisted chevrons sewn on the sleeve. So both uniforms are incorrect.
Scenes in the living room, the kitchen and the hospital have extended periods where the boom microphone is visible.