** FILE ** In this Friday, Jan. 13, 2012 photo actor Dustin Hoffman poses for a portrait while promoting the new HBO television series "Luck" at the Television Critics Association Winter Press Tour in Pasadena, Calif. A man who had a cardiac arrest while jogging in London's Hyde Park says his life was saved with help from a famous passer-by, Dustin Hoffman. Sam Dempster said the actor waited with him after he collapsed on April 27 until paramedics arrived. (AP Photo/Danny Moloshok, file)

** FILE ** In this Friday, Jan. 13, 2012 photo actor Dustin Hoffman poses for a portrait while promoting the new HBO television series "Luck" at the Television Critics Association Winter Press Tour in Pasadena, Calif. A man who had a cardiac arrest while jogging in London's Hyde Park says his life was saved with help from a famous passer-by, Dustin Hoffman. Sam Dempster said the actor waited with him after he collapsed on April 27 until paramedics arrived. (AP Photo/Danny Moloshok, file)