The practice of releasing unrated extended versions of comedies and action film goes back years. But Fox has never taken that step with an X-Men film, until now.

The Wolverine, from director James Mangold and starring Hugh Jackman, hits disc formats on December 3, and Fox is giving fans an incentive to buy the tricked-out 4-disc blu-ray by featuring an extended, unrated cut of the film, only on that release. There are a bunch of good extras on that four-disc set beyond the new cut (including a commentary from Mangold) and you can read about those below.

Following are all the specs for three editions: 4-Disc Blu, regular Blu, and the fairly bare DVD. The Wolverine will be available on Digital HD on November 19, and these disc formats hit onDecember 3.

THE WOLVERINE Unleashed Extended Edition – Blu-ray 3D/Blu-ray/DVD

The Extended, Unrated Cut – the first for the X-Men franchise!

THE WOLVERINE Unleashed – more violent and hardcore than ever before

The Path of the Ronin – an immersive feature following the journey of a hero without a past

Alternate Ending

Audio Commentary by Director James Mangold (only on the unleashed extended)

Sync with The Wolverine Second Screen App for an interactive Second Screen experience

X-Men: Days of Future Past Set Tour

Theatrical Trailer

THE WOLVERINE Blu-ray

THE WOLVERINE – Theatrical Version with special features:

Alternate Ending

X-Men: Days of Future Past Set Tour

The Path of the Ronin – an immersive feature following the journey of a hero without a past

Sync with The Wolverine Second Screen App for an interactive Second Screen experience

Theatrical Trailer

THE WOLVERINE DVD

THE WOLVERINE – Theatrical Cut

Inspiration – A Ronin’s Journey

So what will the extended cut feature, and how far beyond a PG-13 will it go? The “unrated” aspect doesn’t have to mean much — there’s no standard metric by which “unrated” cuts like this are measured, and in reality the version to be presented on this disc may not be much more violent or bloody (or whatever) than the theatrical. The “extended” part is more interesting, and we can probably expect a lot more Wolverine-on-ninja action.