Here is the short promotional documentary, Houdini: The Man Behind The Magic, which appeared only on the Blockbuster Exclusive edition of the Death Defying Acts DVD. It features the cast and crew of the 2008 film talking about the real Harry Houdini.
It's interesting that Scott Penrose, the Magic Consultant on the film, mentions that John Calvert knew Houdini. I believe that could make Calvert, who just turned 101 (I attended his birthday celebration at The Magic Castle last month), the last known living person who actually met Houdini.
You can enjoy more Houdini video goodies like this on the WILD ABOUT HARRY YouTube Channel.