Need help finding out name of an 80's children's movie
I am trying to figure out the name of a movie that I saw in the 80's when I was a kid. The details are kind of sketchy, but this is what I remember. Children can step through a mirror and it takes them to another land where an evil witch (not the green mole on the nose kind, more like the snow white kind) is hunting them down, and the thing about the witch is that she has to eat an apple at a certain time in this glass chamber or she will age. And that is all I can remember...