Images I added are from an early Columbia House Record Club Edition. Its odd in that it states a Warner Bros distribution and bears the re-release catalog number but still has the mispellings from the ABC first edition.
The track title of "Whatever Happened To Saturday Night?" was indeed changed to "Hot Patootie, Bless My Soul" for the film version. So, while I understand why you would view it the way you do, techinically the title on later pressings and the US pressing is correct. "Whatever Happened To Saturday Night?" is the way it was titled in the stage show.