If you're wondering what Bruce Willis is up to these days, the man is currently starring in Misery on Broadway. Not a bad way to spend your days given that the character is on his back for a good portion of the show, but despite that, Willis insists that he still does most of his own stunt work for films. Stephen Colbert calls his bluff and what ensues is easily more entertaining than the last DIE HARD flick. Those of you with gluten allergies might want to steer clear of this one…