If you can find them, David Niven wrote a couple of autobigraphies many years ago that I loved. Also, Alan Alda has a super autob.
If you like dogs, pick up any of Jon Katz's bedlam farm books, also Running to the Mountain about his mid-life crisis.
Have you ever read any Krakauer - Under the Banner of Heaven (founding of LDS), and his other books.
Fiction but reads like autob: Guernsey Potato Peel Pie and Literary Society - the best book of 2008