Blank Check (1994) on Netflix

Preston Waters is a 12 year old boy who is sick of his parents always teaching him the value of money. Little does he know, he is about to learn it. When a smart crook, Carl Quigley, nearly kills Preston by running over his bike, he mistakenly fills out a blank cheque, which Preston prints out for $1 Million. Preston convinces the bank manager to cash the cheque, and when Quigley's employee returns to collect the money for Quigley and finds that the bank manager has given it to a kid, Quigley sets out to track the kid down and get his money. Preston creates the pseudonym of 'Macintosh' to handle his finance, and the police get suspicious. Preston begins his spending, but later becomes aware that he must avoid Quigley who is on his back, and the police seperately attempt to work out the mystery behind 'Macintosh'. Will Preston be convinced that money is'nt everything.