The True Origin of Harry Potter

Last night, I was watching “Troll“, a movie from 1986:

And, to my surprise, I realized that two of the main characters are named “Harry Potter”.

Harry Potter Jr. (above) aka Atreyu from “The Neverending Story“, is played by Noah Hathaway.

Troll is much older J. K. Rowling’s somewhat more-famous creation.
Is there a relation? Is the entire Harry Potter series actually an
homage to her favorite film? Can it be mere coincidence, or is the
insidious Black Magik of the Troll somehow at play? If you have any
input, feel free to post a comment. I am eager to find out more… and
kind of afraid.

Plot:

There are so few opportunities to watch Julie
Louis-Dreyfus run around wearing ivy (And only ivy.) that you have to
take notice of this film. When the Potters move into a new apartment
they never dream what will happen next, their daughter Wendy is soon
replaced by a malevolent troll! The capricious creature enjoys
confusing Harry or Anne with strange antics, almost to the point of
neglecting it’s true goal. Slowly and surely it uses a magical ring to
turn the other apartments into magical forests, each one populated by
the transformed inhabitants. Harry Jr. takes pains to avoid his sister,
mainly since she is beating him up, (Really not good for the budding
male psyche - getting thrown around by your little sister.) so he
befriends Eunice. She gives him a magical spear to defeat the Troll’s
minions, good thing since she fares poorly against them. In a bizarre
twist ending the Troll foils his own plans, plunging the magical spear
into the guardian beast to save Wendy’s life. There is even one more
twist ending involving a police officer and the laundry room, but we
won’t go into that