Lady in Dream (1968) [No 3D Blu-ray]

[Interdimensional]

Originally Posted by BleedOrange11

Sounds like they are crediting moving things in different directions at different speeds on multiple planes as making the film stereoscopic. That is manipulation of monocular depth cues to create a greater sense of depth for a flat picture, rather than the traditional definition of stereoscopic 3D, having two discrete images of each scene, one for each eye, that provide binocular depth. Hard to say definitively, but I think this is a case of false advertisement.

Is it possible they shot it that way to take advantage of the Pulfrich effect? I haven't seen the film in question, but if the movement is mostly in the same direction (foreground relative to background) that might have worked.