It is a fairy, fantacy movie released between 1978-1984 its about awizard who wants to marry a girl with a child and she refused , so he took the child and told her if she wanted to see him he will be in the castel , and she took that dangerouus journy alone first but then she had seen a lot of good faries that helped her and sacrificed for her till she find the baby

Labyrinth (1986) (http://www.imdb.com/title/tt0091369/)

These plots are similar, but it very well could be a different movie.

Diffently sounds like labyrinth the wizard would be david bowie who plays the goblin king