I just got this BD and came here to figure out which playlist was correct. Since this discussion doesn't appear to have the correct information, I was able to figure it out and thought I'd clear up the confusion. This disc isn't playlist obfuscation; there are actually different versions/options with regards to playing/ripping this movie.
There are essentially four versions of this movie on the disc, each with two separate tracks containing different subtitles (for eight possible mkv files).
This movie had different versions in the UK and US, so there is a US Theatrical Version and a UK Theatrical Version. The UK version includes a segment towards the end, containing the song "Superheroes" that was not in the US release.
The other two "versions" on the disc are the above two releases, but with the first 20:10 of the movie in B&W. The director had initially wanted to start the movie in B&W, and switch to color when Brad and Janet enter into room with "The Time Warp". But this was
rejected by the studio.
Here are the segment maps for my disc (in the order they appear in my makemkv contents window):
856 - US Theatrical Version, English and Japanese subtitles only.
857 - UK Theatrical Version, English and Japanese subtitles only.
851 - UK Theatrical Version, English and extensive other subtitles
808 - US Theatrical Version, B&W Start, English and Japanese subtitles only.
800 - US Theatrical Version, English and extensive other subtitles
802 - US Theatrical Version, B&W Start, English and extensive other subtitles
859 - UK Theatrical Version, B&W Start, English and Japanese subtitles only.
853 - UK Theatrical Version, B&W Start, English and extensive other subtitles