In Luc Besson's 1997 Sci-Fi classic "The Fifth Element", English actor Ian Holm portrays a priest named Vito Cornelius.A joke in the film is how Leeloo, a major character in the film, pronounces Cornelius as cor-nee-lee-oos.
Cornelius is the name of the title character's half-dwarf professor in CS Lewis' "Prince Caspian." [Spoiler warning] It is also the name of adult Lewis (the orphan, not the afore mentioned author) in the movie "Meet the Robinsons."
In the book series Demonata there's a character named Cornelius but when he was a little kid the closest he could come to pronouncing it was kernel so they stuck with it and that's what he's called. He says he doesn't like the name Cornelius and insists on being called kernel.