Continuity mistake: The social worker takes "the brother" to stay for a while at a female friend's place. Her son, "little Earl" has a bandage on his left knee. He peels the bandage off and sets it on the floor to show "the brother alien" his injury. A medium shot shows there is no bandage on the floor. The "alien" puts his hand on the boy's knee, and heals it. The very next shot the bandage is back on the boy's knee and the scene continues.
Character mistake: The ref says there's no rules before McClure fights Whiplash but she tries stopping them later.
Continuity mistake: When the coach instructs the guys telling them that their 'pistols don't shoot blanks', the clipboard under his armpit flips around at the cut. (00:06:00)