This movie, shot in 2002, seems strongly inspired by the success of Harry Potter - for example when Rabia, the evil witch, says that young witches who live like "normal" people shouldn't get a crystal bowl. But in contrast to the Harry Potter books and movies the witches in Bibi's world are well-known to normal people and are shown on the first page of the local newspaper.
But it is not right to say that Bibi Blocksberg is a Harry Potter copy. She was invented by Elfie Donnelly in the 1970s (?) and had a high success on cassettes, in comics and cartoons a long time before the rise of Harry Potter. It is very good that Elfie Donnelly wrote the script of the movie herself, so that no one else could destroy Bibi's world.
Besides the young actors like Sidonie von Krosigk and Maximilian Befort famous German actors like Katja Riemann, Ulrich Noethen, Corinna Harfouch and Monika Bleibtreu make this movie worth seeing.
In fact, Germany tried to remember his own magicians after the Harry Potter hype and made a worth seeing wizard movie for families.