Alice growing effect in 1972 "Alice's Adventures in Wonderland" - how was it done? It's not green screen?

Question

How was this scaling effect done? My first assumption would have been green screen, but it's clearly not - she's taking on all the light and shadow from the scene around her. Even modern green screen probably doesn't look that good. Well maybe only nowadays, but certainly not back in 1972 or even 10 years ago.She scales up perfectly, and then at the end, falls against the wall, interacting with the scenery. You can even see her shadow interacting with the back wall on the left during the first half of the growing, and then in the latter half, her shadow is interacting with the fireplace on the left as well.As far as I can tell, it looks perfectly real... and from a movie made in 1972. I've tried to wrap my head around how they could have done it with forced perspective somehow, while moving her and the background towards/away from the camera, together or separately, but that just doesn't work.

Answer 1

So, i believe your original assumption is correct - they used forced perspective. If you pay very careful attention to Alice's feet during the drink me/shrinking scene around the 10-11 minute mark she is actually standing on some sort of platform/board. Also there is something strange that happens at around 10:56 when Alice's hand crosses with the table. I was also able to find a promotional photo from the film that shows the shadows, and the board a little more clearly.

Later when she is in the White Rabbit's house she: enters the room, crosses towards the left and you see her shadow on the left/fireplace, then she moves back the right - all one shot. There is a cut as she places the bottle down, and when we cut back we are in a different shot/set. If you pay attention to how dark the shadows on the wall are before the bottle cut/insert shot, then afterwards they clearly do not match.

I hope this helps! please let me know if you have any other questions.