OK, assuming I'm correct, here are my first 5 clues:
1. Also an 80's movie
2. The main character is an 11 year-old boy who's parents ignore him in favour of the neighbours
3. The movie includes an appearance by the Minotaur
4. One of its stars was also in
A Midsummer Night's Dream
5. A wardrobe plays a significant early role in the movie
I think you will have seen this one, lestatar