Jon Heder, who is best known for his starring role in Napoleon Dynamite, is going to star in Loudermilk for writer/director Craig Zobel, according to The Hollywood Reporter. The film is being produced by Heder's twin brother Dan and his older brother Doug. Loudermilk centers around a Napoleon Dynamite-style oddball who encounters a contaminated substance and is given superhero powers. Heder is currently shooting When in Rome, alongside Kristen Bell, Josh Duhamel and Will Arnett.