Does anyone know what this film is? I watched it maybe 20 years ago, it was about a little girl who finds out she isn't human. She discovers she is actually 'created' - maybe a robot or clone- I can't remember. Anyway, the bit that sticks in my mind is that she was living / staying in some institute where there were lots of rooms, all with identical girls to her in. Possibly her name was Rebecca? This has been driving me mad for years!!

If this is the movie you are looking for, it is also a great book: Anna to the Infinite Power
Anna to the Infinite Power (1983) - IMDb

WOW!! Thank you SO much. I will be looking for that book first thing tomorrow! Can't believe someone else finally knows what I'm talking about - I started to think I must have dreamt it!

I am glad I could help. :)

I fell in love with it decades ago, myself. :)