Paycheck

They say that we only use 20% of our brains. That being the case, butt-chinned Michael Jennings reasons, it should be fine to let an excitable leprechaun blast at least 80% of one's brain with lasers. And so this is how our hero makes his fortune. By reverse engineering pointless new technologies for rival companies and subsequently allowing Paul Giamatti (that weird guy that always manages to convince you that you don't hate his performance for some reason) to practice his Star Fox skillz on incriminating memory cells, Jennings essentially trades his memory of his dubious business practices for a... PAYCHECK! He's paid in the form of PAYCHECKS, you see.