<P> A 1947 radio adaptation of the movie, with Danny Kaye and Virginia Mayo reprising their roles, was performed on The Screen Guild Theater . Because the show was a half hour, including commercials, Kaye's extraneous routines are minimized, making it more like the original story . Even closer to the original story is a 1944 radio adaptation from This Is My Best, with Robert Benchley as the daydreaming Mitty . </P> <P> 20th Century Fox produced and Ben Stiller directed an adaptation of the book in 2013, with Stiller starring as Mitty . Kristen Wiig, Shirley MacLaine, Patton Oswalt, Adam Scott, Kathryn Hahn, and Sean Penn also appear in the film . Filming took place in Manhattan and the Bronx in May 2012 and in Iceland from July to September 2012 . The film was released on December 25, 2013 in the US and in other countries . The film had a production budget of $90 million . </P> <P> "The Secret Life of Walter Mitty" was adapted for the stage by Thurber as part of the 1960 Broadway theater revue A Thurber Carnival . The sketch, which closed the show except for "Word Dance Part II", was nearly identical to the short story, except that at the end he cleverly avoids being shot . The original cast for the sketch was as follows: </P> <Ul> <Li> Peggy Cass as Mrs. Mitty </Li> <Li> Tom Ewell as Walter Mitty </Li> <Li> Paul Ford as Mr. Pritchard - Mitford and The Leader </Li> <Li> John McGiver as Dr. Renshaw </Li> <Li> Wynne Miller as Nurse </Li> <Li> Peter Turgeon as Narrator, Lt. Berg, and Dr. Remington </Li> <Li> Charles Braswell as Dr. Benbow </Li> </Ul>

What is the secret life of walter mitty short story about