Can you help me with the name of this movie please!?

I saw this movie when I was little so I can only remember some of what happens but nothing much and my parents aren't any help. I'll try and write it so it's not confusing. So at the beginning of this movie the main character a girl gets a mirror in her room, not the kind you hang on the wall but stands up on it's own, anyway she eventually travels through it into a magical land of some sort. And that's all I remember except berries play an important role later in the film. Any guess would be wonderful but please I know it's not Narnia or Coraline cause this is a lil bit of an older movie maybe in the nineties(not quite sure when) and like I said Mirror and berries.