Different versions of "Skyfall"?

While re - watching the film I realized that the intro differs from what I own. My version is slower and hence much more tragic. I am pretty sure that it is not the radio edit for it has a long part in the middle with a predominant rhythm. Does anyone know more about those different versions? I mean, you can hardly have that long middle-part in the intro, but why is the movie version faster in its entirety?

There are always a few edits of the songs. GE, TND and TWINE spring to mind, with their full version slightly shorter to match the credits sequence. I imagine it's the same with Adele's track, with it sped up a little, even though it's still been cut to. The original version has a much longer introduction.

Thank you. And yeah, you're right; the introduction is definitely longer.