Yes, but Superman the movie on Blu looks nearly identical to the standard dvd(not kidding). And no lossless audio is just the nail in the coffin. It's a dud.
From the WB chat March 2009
[JoeCampos] Hi! I'm happy you're doing digital work on the MGM/Turner titles, and look forward to OZ and GONE WITH THE WIND on blu ray. Anyway, any chance you will revisit SUPERMAN: The Movie and SUPERMAN II in definitive editions on Blu Ray/DVD with the added TV...
I don't have time to search for it now, but I'm sure it was asked about in the last WB theatrical dvd chat. Are the rest of the Superman films coming to Blu-Ray? The answer was kind of short and to the point "Been there, done that" meaning don't hold your breath.