Apollo 12 splashdown footage recovered

Here's a neat piece of history: no footage of the Apollo 12 capsule splashing down after their trip to the Moon has been known to exist... until now. A man who served on the U.S.S. Hornet, the recovery ship, found some footage shot when Apollo 12 returned to Earth. He found it in the bottom of a storage box! What other treasures are rotting in peoples' attics, I wonder?