This version was created for the 2012 3D re-release (and IMAX screenings) to provide a more immersive "window" into the scene.
Super 35 film exposes a frame that is roughly 1.33:1 (the shape of an old tube TV) or 1.37:1 (Academy ratio). When the movie is shown in theaters, the top and bottom of the frame are masked off by black bars to create the widescreen 2.35:1 image. This is the composition James Cameron approved for theatrical release. titanic open matte blu ray
With the recent 25th Anniversary 4K UHD release of Titanic, many hoped for an open matte option. Unfortunately, the 4K disc remains in a widescreen format. While the 4K transfer offers incredible detail and HDR colors, those seeking the open matte look still have to rely on older high-definition broadcast masters or fan-made reconstructions. This version was created for the 2012 3D
Because the Spanish Blu-ray is hard to find, the internet has done what the internet does. High-quality rips of the Open Matte Blu-ray exist on fan-editing forums (OriginalTrilogy.com, Fanrestore). Furthermore, talented fans have created —syncing the Open Matte video with the superior audio and color grading from the 4K release. This is the composition James Cameron approved for
For now, the disc remains a legendary footnote in Blu-ray history. If you find a copy in a second-hand store in Madrid or Tokyo, grab it. Not because it’s the best way to watch Titanic , but because it’s the only way you’ll ever see what James Cameron didn't want you to see.
Here’s a concise review of the Titanic Open Matte Blu-ray (usually the 2012 or 2017 release, depending on the region).