This movie starts with a dwarf running to deliver a message to the gate when an evil person shoots him with an arrow and kills him. Then there’s an old man who guards a gate to the other world, a boy comes and talks to the old man and the old man gives him a spell book and lets the boy go to the other world where he meets a man and girl who help him learn magic so he can stop the evil wizard who’s trying to take over.

it’s in color and it’s a B rated movie, made around 80s or 90s

please help me!