Joe Somebody (2001)

"Someone just picked on the wrong nobody."

When underappreciated video specialist Joe Scheffer is brutally humiliated by office bully Mark McKinney in front of his daughter, Joe begins a quest for personal redemption. He proceeds by enduring a personal makeover and takes martial arts lessons from a B-action star. As news spreads of his rematch with Mark, Joe suddenly finds himself the center of attention, ascending the corporate ladder and growing in popularity.