People look for this specific file format for a few reasons:
A 3D-capable projector or TV is essential. The depth effects in the "tunnel" sequence are legendary for their "pop-out" and "sink-in" quality. Coraline.3D.2009.1080p.BluRay.ISO
Director Henry Selick deliberately used 3D depth as a narrative device to contrast Coraline’s two realities: People look for this specific file format for
A 3D television, a 3D-ready projector, or a modern Virtual Reality (VR) headset (such as a Meta Quest or Apple Vision Pro). VR headsets are highly recommended today, as they emulate a massive theater screen with zero ghosting or cross-talk. a 3D-ready projector