“The Little Vampire” series was originally adapted in 2000 by Richard Claus into a live-action feature directed by Uli Edel.
Based on the characters from the bestselling novels by Angela Sommer-Bodenburg,The Little Vampire, tells the story of Rudolph, a thirteen year old vampire, whose clan is threatened by a notorious vampire hunter. He meets Tony, a mortal of the same age, who is fascinated by old castles, graveyards and – vampires. Tony helps Rudolph in an action and humor packed battle against their adversaries, together they save Rudolph’s family and become friends.
https://www.youtube.com/watch?v=i8qzJMzyzKc