Dirty Harry "Rawhide", was responsible for creating Callahan's distinctive old-fashioned brown and yellow checked jacket to emphasize his strong values in pursuing crime. Filming for "Dirty Harry" began in April 1971 and involved some risky stunts, with much footage shot at night and filming the city of San Francisco aerially, a technique for which the film series is renowned. Eastwood performed the stunt in which he jumps onto the roof of the hijacked school bus from a bridge, without a stunt double. His face is clearly visible throughout the shot. Eastwood also directed the suicide-jumper scene. The line, "My, that's a big
Harry the Dirty Dog to get his family to realize that it is him only succeed when he brings back the brush that he buried. "Harry the Dirty Dog" received positive reviews. Kirkus Reviews called it "Another funnybone tickling charmer". Kids' Book Review found "Its timeless storyline, humour and sheer affection between the characters make the series an absolute delight for all ages." Common Sense Media commented "Expressive illustrations with old-fashioned charm." The book continues to be held in thousands of libraries worldwide. Harry the Dirty Dog Harry the Dirty Dog is a children's book written by Gene Zion and illustrated by Margaret Bloy