Cairn terriers are small--but their fun personalities can easily fill up the big screen Right off the bat, readers will meet Terry, the little cairn terrier who played Toto in the 1939 classic movie The Wizard of Oz. Toto became one of Hollywood's most famous dogs because of the loyalty, courage, and intelligence that Terry showed on screen--traits that any cairn terrier owner would instantly recognize. Where did these qualities come from? Perhaps...