The shot of all the old pictures of the people who died on the ship against a scene from the sinking ship from the 1997 film... such a heartbreaking scene. I get chills every time I see it.
Naw, the most heart-breaking scene is too hard to pinpoint. Let's just say, anything with Bill Paxton acting like a spineless complainer. Too bad there's not a Paxton-less edit out there. It would be an excellent doc without him.
I remember seeing it in IMAX. Those picture receding back toward the sinking ship was in 3D and it was really amazing. Even more effective than seeing it on DVD.