by Le Anne Lindsay, Editor In The Secret Life of Walter Mitty, Walter (Ben Stiller) is an exceedingly regular kinda guy, with 15 years at Life Magazine, working with photo negatives in a dark archival room, along side a nice, but overweight, equally dorky guy (Adrian Martinez).  Like most of us who are still looking for love in our late 30’s and 40’s, we find ourselves spending a lot of time with siblings and our parents, and in my case a 70 year-old aunt. In Walter’s case a sister (Kathryn Hahn) still holding on to low level acting aspirations and a mother (Shirley MacLaine) who needs help moving into a…