Upon the film's release, it was noted that the name "Napoleon Dynamite" had originally been used by musician Elvis Costello , most visibly on his 1986 album Blood & Chocolate ,   although he had used the pseudonym on a single B-side as early as 1982.  Filmmaker Jared Hess states that he was not aware of Costello's use of the name until two days before the end of shooting, when he was informed by a teenage extra .  He later said, "Had I known that name was used by anybody else prior to shooting the whole film, it definitely would have been changed ... I listen to hip-hop , dude. It's a pretty embarrassing coincidence."  Hess claims that "Napoleon Dynamite" was the name of a man he met around 2000 on the streets of Cicero, Illinois , while doing missionary work for the Church of Jesus Christ of Latter-day Saints (LDS Church).  
8. “I see you’re drinking 1%. Is that ’cause you think you’re fat? ‘Cause you’re not. You could totally be drinking whole if you wanted to.”-Napoleon to Deb.
Poor Deb can’t catch a break. She’s just trying to enjoy her bland ass sandwich and drink some 1% milk. She knows drinking whole is like sucking directly on a cow’s udder, but judging from Napoleon’s expertise in milk tasting, he probably doesn’t mind. Way to be a tool, Napoleon. Then again it’s a good line to use on that one friend everyone has. You know, the one who always orders a salad.
From the rural town of Preston, Idaho, comes Napoleon Dynamite (Jon Heder). With a red 'fro, his moon boots, and illegal government ninja moves, he is a new kind of hero. His family consists of fragile brother Kip (Aaron Ruell), who's seeking his soulmate in online chat rooms; Uncle Rico (Jon Gries), who is stuck in his "glory" days of high school football; and Grandma (Sandy Martin), who enjoys going out to the dunes on her quad-runner. Napoleon spends his days drawing magical beasts, working on his computer hacking skills to impress the chicks, and begrudgingly feeding his Grandma's pet llama. When his friend Pedro (Efren Ramirez) decides to run for class president, it is Napoleon to the rescue to help him triumph over adversity.