An addition to the ending was made for some European coutries due to certain laws prohibiting a film from letting a "bad guy" get away at the end of a film. In the new ending, after Scottie looks down from the belltower (the original ending) there is a shot of Midge sitting next to a radio listening to reports of police tracking down Gavin Elster. As Midge turns off the radio the news flash also reports that 3 Berkeley students got caught bringing a cow up the stairs of a campus building. Scottie enters the room, looks at Midge plainly, and then looks out a window. Midge makes two drinks and gives one to Scottie. It ends with both of them looking out the window. This ending can be found on the restoration laserdisc.
An entirely new audio track was created for the 1996 re-release using modern recordings and mixed in DTS surround sound. New elements not present in the original film were added and several important details (such as creaky roof tiles) were omitted. This was the version used on all subsequent theatrical re-issues, home video releases and television broadcasts until 2012, when Universal made a DTS soundtrack retaining the original sound effects.
The version shown by AMC on 11/29/2013 contains the original VistaVision soundtrack.