Lots of actors write memoirs. Some do it as career repair, explaining an embarrassing spiral into drug use or scandal. Others do it to enhance their image as lovable, humble professionals, just honored, by gosh, to be part of this wonderful, wonderful business. And then there’s Sean Astin, whose performance as steadfast hobbit Sam Gamgee in the The Lord of the Rings trilogy gave the movies their heart and soul. In his new book, There and Back Again: An Actor’s Tale (St. Martin’s Press, $24.95, 320 pages), Astin does something positively revolutionary: He’s honest. [More]