If you see Will Smith’s I Am Legend on IMAX on December 14, you’ll get a special treat: a prologue to The Dark Knight starring Heath Ledger as The Joker.

Click for IMAX size

More about that here.

Fortunately, the good folks over at the official IMAX website have posted a short video about how director Christopher Nolan shot some of the film’s action with massive IMAX cameras.

To see it, click here.

Then click on SCREENING ROOM.

Then click on SELECT A FILM, and then choose THE DARK KNIGHT to watch the video.

You get to see Batman and the Batmobile and a couple of explosions, but there’s no Joker footage in sight. They’re saving that for the IMAX prologue in December.

And it’s going to be awesome.

In addition to the Joker prologue, the entire film will also be shown on IMAX screens when it debuts on July 18.

Life is good.