Despite the 2-disc holder in the pic I'm guessing it's just the 1xBD50 with the only Special Feature being the Commentary and the Theatrical Trailer.
RE:AQ, PQ and Extras from the U.S. edition which is unlikely to be any different to ours:-
The Video and Audio
"For many years, an HD version of Innerspace has been available via digital retailers for years, and aside from some minor print damage, it's a perfectly serviceable master, with a visible grain structure and noticeable detail and clarity upgrades over the DVD. Innerspace was not a hit in 1987, and I don't think anyone would've been shocked if Warner Bros. had just dropped that master straight onto a disc. Instead, this Blu-ray edition features a brand new 1.78:1 1080p AVC-encoded presentation that brings the clarity and crispness of the picture up another level. Color saturation increases noticeably, fine detail jumps another few notches, and depth visibly improves.
However, there are a couple of caveats to this otherwise improved image. First of all, while Warner has avoided their troubling tendency to push the colors teal and orange, the image is noticeably darker than previous versions, which is another tendency that reads like a modern technique to increase the illusion of depth and richness by enhancing shadow and texture.
A DTS-HD Master Audio 5.1 mix is provided for the Blu-ray, a lossless upgrade of the DVD's digitally remastered and remixed soundtrack. The film sounds very nice in HD, especially the scenes inside the body, which are immersive and enveloping, and are the scenes where the lossless upgrade serves the mix best. Lossy Dolby Digital 2.0 mixes in French and Spanish (both Castillian and Latin), English captions for the deaf and hard of hearing, and French and Spanish subtitles are all provided."
. . . and:-
The Extras
"The disc's one extra is ported from the DVD release, a fun audio commentary by director Joe Dante, producer Michael Finnell, actors Kevin McCarthy and Robert Picardo, and visual effects supervisor Dennis Muren. Sadly, they mention that Martin Short was slated to join them but couldn't make it, but this is otherwise an entertaining commentary. Dante and Finnell lead the discussion, with McCarthy only chiming in from time to time, Picardo arriving when his character appears in the film, and Muren talking about the special effects sequences. Dante has always been a funny and informative commentator and this track is no different, and those who have yet to listen to it will no doubt find it very enjoyable.
Although in some ways, the fact that Warner released a disc of InnerSpace is amazing in and of itself, it is a shame that no new extras were created. In particular, although Muren is on the commentary, it feels like a featurette on the film's Academy Award-winning effects would make the package feel a bit more complete.
An original theatrical trailer is also included."