John McCain will be the subject of an upcoming biopic about his life and decades-long career in politics. Stampede Ventures has optioned rights to “The Luckiest Man: Life With John McCain,” a biography written by the late Arizona senator’s political adviser and friend Mark Salter, and plans to adapt it into a feature film. Salter is co-writing the script with television producer Craig Turk (“The Good Wife,” “FBI”). The film is being made with support from McCain’s family. His widow, Cindy McCain, will serve as an executive producer. “John’s story is one of incredible heroism, of serving causes greater than...