I wonder...
Wouldn't it be possible to build a replica of the forced perspective set (CG preferrably) and figure out it's "true" length by fiddling with the camera? That way, you would be able to see what it's supposed to look like.
The main problem here isn't actually the set, but rather the actual cameras and lenses they used. Perhaps some of the guys from Hobbytalk would know.
Wouldn't it be possible to build a replica of the forced perspective set (CG preferrably) and figure out it's "true" length by fiddling with the camera? That way, you would be able to see what it's supposed to look like.
The main problem here isn't actually the set, but rather the actual cameras and lenses they used. Perhaps some of the guys from Hobbytalk would know.