Continuity mistake: When the gun is telekinetically pointed at Deranian and his henchmen, Jason and the kids use this to escape and drive past both men. In the next shot, when the gun is seen still suspended in mid-air, the camper is seen right behind it.
Store Clerk: Well, sir, a covered wagon pulling outta St. Joe didn't take near as much supplies as you got yourself here, Mr. O'Day.
Jason O'Day: You're sure one well-informed man, aren't ya? Now, did you think you can hand me that carton without straining yourself, or are you just tuckered out from sticking your nose in my affairs?