You’ve got to check out this French pianist named Enguerrand-Friedrich Lühl-Dolgorukiy.
He has an album on iTunes called John Williams – Piano and a few others, including long-form works for TWO pianos! I’ve been listening to it and am blown away — it gives me that vibe from Steve Vai Piano Reductions by Mike Keneally. Except this is of course very famous musical cues from Star Wars, Indiana Jones, E.T., etc. It is quite detailed.
His stuff is also on Amazon. You can preview it on this iTunes player: