What Disney movie is this?

Its where this kid gets a check because somebody hit his bike. But the guy who gave it to the kid never filled it out, because he told the kid his parents would know an appropriate amount for it. So he filled it out himself and he put it for $1,000,000. He buys a house and pretends theres a guy named Mr. Macintosh. Help what movie is this?! SOON PLEASEE!