Originally Posted by En Sabah Nerd

To my understanding all of the actual film of the pit scene was destroyed at the studio's request because they found it far too graphic and disturbing, like people became ill at the first screening kind of reactions. The exact contents are pretty much all hear-say but I recall reading that it even involved one guy getting ripped in half by two spider-like creatures and then eaten. There was no blood or gore but the imagery was enough, especially at the time, to be cut from the final movie. So Jackson's interpretation of the scene might not have been that far off from the original mark. Alternatively I've also read that it was cut more for time's sake and to limit the total number of film reels used. Whatever the exact reason behind it, the footage is apparently totally lost to us. Like Black Arbor said though, there are some pictures that have survived to give us an idea of what we might have seen.

Originally Posted by Wheeljack

I saw it as a bonus scene on the Kong DVD. Still tame compared to what they were allowed to show in Kong: Skull Island.

Originally Posted by Black Arbor

That was actually Peter Jacksons recreation of the scene based off photos and storyboards from the '33 Kong! Still a fun video! Supposedly the cut scene still existed til a fire in the RKO studios vault happened in the 50s