It is a live-action movie. I saw it long ago on TV. It was released before 2010 for sure, and probably earlier. The channel was probably TV2 or RTL klub, which are commercial channels in Hungary in Central Europe. Please note that I saw it long ago, so the details are a bit hazy; however, I remember a few very specific moments:
It was about a magic school with wizards. The main character was a boy who can shapeshift into an eagle or falcon. Once he used his shapeshifting skill to annoy his friend. When this happened a teacher reminded him of a story where a man turned into a bear and couldn't turn back and because of this, his own family had to kill him. (This is probably just an insignificant moment in the movie.)
I also remember that in the end there was a key they had to make, which was a puzzle with three pieces. It probably opened some door, and the last piece of the puzzle was a girls' pendant that was in front of them all along.